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Percy's High Performance
Percy's High Performance, Inc. was started in 1995 by racers for racers.

Percy's High Performance Categories

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Accelerator Pumps
Keeping your accelerator pump system working at its best is critical to achieve the correct fuel discharge and performance. PitStopUSA.com carries a great selection of replacement accelerator pump...More Details »
BB Chevy Header Gaskets
PitStopUSA.com offers a variety of Big Block Chevrolet Header Gaskets from the biggest brands in drag racing including Cometic Big Block Chevrolet Header Gaskets, Earl's Big Block Chevrolet Header...More Details »
BB Chrysler Header Gaskets
PitStopUSA.com offers a variety of Big Block Mopar Header Gaskets from the biggest brands in drag racing including Edelbrock Big Block Mopar Header Gaskets, Fel-Pro Big Block Mopar Header Gaskets,...More Details »
BB Ford / FE Header Gaskets
PitStopUSA.com offers a variety of Big Block Ford and Ford FE Header Gaskets from the biggest brands in drag racing including Cometic Big Block Ford and Ford FE Header Gaskets, Edelbrock Big Block...More Details »
Carburetor Gaskets
Regular maintenance of your carburetor is critical to consistent and reliable performance. PitStopUSA.com carries a great selection of Carburetor Gaskets including metering block gaskets,...More Details »
Carburetor Metering Blocks
Metering blocks are where the action is when talking carburetors. Metering blocks from PitStopUSA.com take air from the air bleeds in the main body and mix it with fuel from the float bowl. The...More Details »
Chrysler 5.7L / 6.1L Hemi Header Gaskets
PitStopUSA.com offers a variety of Mopar 5.7L, 6.1L Hemi Header Gaskets from the biggest brands in drag racing including Hedman Hedders Mopar 5.7L, 6.1L Hemi Header Gaskets, Mr. Gasket Mopar 5.7L,...More Details »
Collector Gaskets
Pit Stop USA is The Online Motorsports Superstore! We feature Collector Gaskets at low everyday prices.
Exhaust Header/Manifold Gaskets - NEW
Check out the Recently Listed Exhaust Header/Manifold Gaskets.
Ford 4.6L Modular V8 Header Gaskets
PitStopUSA.com offers a variety of Ford 4.6L Modular V8 Header Gaskets from the biggest brands in drag racing including Cometic Ford 4.6L Modular V8 Header Gaskets, Ford Racing Ford 4.6L Modular V8...More Details »
Ford Boss 302 / 351C / 351M / 400 Header Gaskets
PitStopUSA.com offers a variety of Ford Boss 302, 351C, 351M, 400 Header Gaskets from the biggest brands in drag racing including Fel-Pro Ford Boss 302, 351C, 351M, 400 Header Gaskets, Mr. Gasket...More Details »
Header Bolts
Pit Stop USA is The Online Motorsports Superstore! We feature Header Bolts at low everyday prices.
Header Gasket Material
Pit Stop USA is The Online High Performance Superstore! We feature Header Gasket Material at low everyday prices.
Metering Blocks
Pit Stop USA is The Online Motorsports Superstore! We feature Metering Blocks at low everyday prices.
Oil Pump Dynos
PitStopUSA.com offers a variety of Oil Pump DyNOS Nitrous Oxide Systems from the biggest brands in drag racing including Percy's High Performance Oil Pump DyNOS Nitrous Oxide Systems and more at low everyday prices.
Oldsmobile Header Gaskets
PitStopUSA.com offers a variety of Oldsmobile Header Gaskets from the biggest brands in drag racing including Cometic Oldsmobile Header Gaskets, Fel-Pro Oldsmobile Header Gaskets, Mr. Gasket...More Details »
Percy's Header Gaskets
Pit Stop USA is The Online Motorsports Superstore! We feature Percy's Header Gaskets at low everyday prices.
Pontiac Header Gaskets
PitStopUSA.com offers a variety of Pontiac Header Gaskets from the biggest brands in drag racing including Cometic Pontiac Header Gaskets, Edelbrock Pontiac Header Gaskets, Fel-Pro Pontiac Header...More Details »
SB Chevy Header Gaskets
Pit Stop USA is The Online Motorsports Superstore! We feature SB Chevy Header Gaskets at low everyday prices.
SB Chevy LQ4 / LS1 / LS6 Header Gaskets
PitStopUSA.com offers a variety of Small Block Chevrolet LQ4 / LS1 / LS6 Header Gaskets from the biggest brands in drag racing including Cometic Small Block Chevrolet LQ4 / LS1 / LS6 Header...More Details »
SB Chrysler Header Gaskets
PitStopUSA.com offers a variety of Small Block Mopar Header Gaskets from the biggest brands in drag racing including Cometic Small Block Mopar Header Gaskets, Fel-Pro Small Block Mopar Header...More Details »
SB Ford Header Gaskets
Pit Stop USA is The Online Motorsports Superstore! We feature SB Ford Header Gaskets at low everyday prices.
Tire Fill Gauges
Pit Stop USA is The Online Motorsports Superstore! We feature Tire Fill Gauges at low everyday prices.
Tire Pressure Equalizers
PitStopUSA.com offers a variety of Tire Pressure Equalizers from the biggest brands in drag racing including Percy's High Performance Tire Pressure Equalizers and more at low everyday prices.
U-Joints
High performance replacement driveshaft U-Joints are fatigue and wear-resistant, and provide the ultimate in strength! PitStopUSA.com carries a variety of driveshaft U-Joints including models...More Details »
Items 1-25 of 26

Percy's High Performance Products

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Items 1-25 of 74
Description: Holley 50cc to 75cc w/ hardware Accelerator Pump Conversion More Details »
Item #: PYS55202
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $51.80
Sale: $37.35
Save: 28%
Save: $14.45
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Description: Adjust-A-Jet Metering Block, Plastic, Purple, Holley 2300/4150/4160/4150HP More Details »
Item #: PYS15001
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $114.37
Sale: $76.62
Save: 33%
Save: $37.75
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Description: Jet Extensions, Push-On, Plastic, Demon/Holley Carburetors, Pair. More Details »
Item #: PYS15009
Condition: New
Limited Supply: Only 0 Left!
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Ships from Michigan.
Price: $17.36
Sale: $12.15
Save: 30%
Save: $5.21
Description: Gasket, Adjust-a-Jet, Metering Block, Reusable, Cork, Holley 2300/2305/4150/4160/4165/4500 Carburetors, Pair. More Details »
Item #: PYS15010
Condition: New
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Ships from Michigan.
Price: $9.72
Sale: $7.47
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Save: $2.25
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Description: Polymer/Rubber Carburetor Mounting Gasket, 4-Barrel, Square Bore, Open Center More Details »
Item #: PYS66021
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $9.99
Sale: $9.34
Save: 7%
Save: $0.65
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Description: Carbon Composite Exhaust Gasket Material, 20" Length, 6" Width, .040" Thickness More Details »
Item #: PYS68070
Condition: New
Limited Supply: Only 0 Left!
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Ships from Michigan.
Price: $16.00
Sale: $14.02
Save: 12%
Save: $1.98
Description: Seal-4-Good Header Gaskets, Aluminum, Round Port, Big Block Chevrolet , (Set of 2) More Details »
Item #: PYS66019
Condition: New
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Ships from Michigan.
Price: $34.42
Sale: $28.04
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Save: $6.38
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Description: Seal-4-Good Header Gaskets, Aluminum, 2.125" Large Square Port, Big Block Chevrolet , (Set of 2) More Details »
Item #: PYS66013
Condition: New
Limited Supply: Only 8 Left!
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Ships from Michigan.
Price: $34.42
Sale: $28.04
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Description: Seal-4-Good Header Gaskets, Aluminum, Stock Square Port, Big Block Chevrolet , (Set of 2) More Details »
Item #: PYS66124
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $34.42
Sale: $31.74
Save: 8%
Save: $2.68
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Description: Seal-4-Good Header Gaskets, Aluminum, Big Block Chrysler B/RB, (Set of 2) More Details »
Item #: PYS66036
Condition: New
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Ships from Michigan.
Price: $34.42
Sale: $28.04
Save: 19%
Save: $6.38
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Description: Seal-4-Good Exhaust Header Gasket, Header Flange Gasket More Details »
Item #: PYS66054
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $34.42
Sale: $27.11
Save: 21%
Save: $7.31
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Description: Seal-4-Good Header Gaskets, Aluminum, Big Block Ford 385 Series, (Set of 2) More Details »
Item #: PYS66035
Condition: New
Limited Supply: Only 5 Left!
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Ships from Michigan.
Price: $34.42
Sale: $28.04
Save: 19%
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Description: Header Gaskets, Aluminum, Oval D Port, Ford 7.5L/460 , (Set of 2) More Details »
Item #: PYS66029
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $34.42
Sale: $28.04
Save: 19%
Save: $6.38
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Description: Seal-4-Good Exhaust Header Gasket, Header Flange Gasket More Details »
Item #: PYS66051
Condition: New
Limited Supply: Only 0 Left!
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Ships from Michigan.
Price: $34.42
Sale: $31.74
Save: 8%
Save: $2.68
Description: Seal-4-Good Header Gaskets, Aluminum, Stock Port, Ford 351C 4V , (Set of 2) More Details »
Item #: PYS66052
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $34.42
Sale: $30.85
Save: 10%
Save: $3.57
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Description: Seal-4-Good Header Gaskets, Aluminum, Stock Port, Ford 4.6L , (Set of 2) More Details »
Item #: PYS66033
Condition: New
Limited Supply: Only 7 Left!
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Ships from Michigan.
Price: $34.42
Sale: $27.11
Save: 21%
Save: $7.31
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Description: Seal-4-Good Header Gaskets, Aluminum, Stock Port, Ford Modular V8 , (Set of 2) More Details »
Item #: PYS66034
Condition: New
Limited Supply: Only 0 Left!
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Ships from Michigan.
Price: $34.42
Sale: $29.91
Save: 13%
Save: $4.51
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $34.42
Sale: $28.04
Save: 19%
Save: $6.38
Description: Seal-4-Good Exhaust Header Gasket, Header Flange Gasket More Details »
Item #: PYS66053
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $34.42
Sale: $27.11
Save: 21%
Save: $7.31
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Description: Header Gaskets, Aluminum, Stock Port, Small Block Chevrolet LS1 , (Set of 2) More Details »
Item #: PYS66032
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $34.42
Sale: $28.98
Save: 16%
Save: $5.44
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Description: Header Gaskets, Aluminum, D Port, Small Block Chevrolet LT1 , (Set of 2) More Details »
Item #: PYS66031
Condition: New
Limited Supply: Only 6 Left!
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Ships from Michigan.
Price: $34.42
Sale: $28.98
Save: 16%
Save: $5.44
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Description: Seal-4-Good Header Gaskets, Aluminum, Small Block Chrysler LA , (Set of 2) More Details »
Item #: PYS66037
Condition: New
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Ships from Michigan.
Price: $34.42
Sale: $31.74
Save: 8%
Save: $2.68
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Description: Carbon Composite Header Gaskets, Round Port, Big Block Chevrolet , (Set of 2) More Details »
Item #: PYS68019
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $21.34
Sale: $17.76
Save: 17%
Save: $3.58
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Description: Carbon Composite Header Gaskets, 2.150" Round Port, Big Block Chevrolet , (Set of 2) More Details »
Item #: PYS68025
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $21.34
Sale: $18.69
Save: 12%
Save: $2.65
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Description: Carbon Composite Header Gaskets, Square Port, Big Block Chrysler , (Set of 2) More Details »
Item #: PYS68036
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $21.34
Sale: $17.76
Save: 17%
Save: $3.58
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Items 1-25 of 74

More About Percy's High Performance

Pit Stop USA is The Online Motorsports Superstore! Percy's High Performance, Inc. was started in 1995 by racers for racers, with a vision of developing unique, problem solving products for the racing and high performance automotive aftermarket. Since then Percy's has developed many products that have done just that. Percy's has patents on most of the products that we make and continue to lead the way in cutting edge technology and new concepts. After many years of proven performance, some of our products have been copied by importers of Chinese made junk. All Percy's products are proudly made right here in the USA, and most parts are made right in house by people that care about their customers. We feature Percy's Adjust-A-Jet Fuel Pick-Up Extensions, Percy's Adjust-A-Jet Metering Blocks, Percy's Seal-4-Good Collector Gaskets, Percy's Seal-4-Good Header Gaskets, Percy's Split-Lock Exhaust Header Fasteners, Percyas XX Carbon Collector Gaskets, Percyas XX Carbon Header Gaskets at low everyday prices.