Pit Stop USA is The Online High Performance Superstore! The Quick Fuel Technology Slayer Series Carburetor is designed with many of the same engineering innovations and features that are built into all QFT race-winning carburetors. This spirit has lead to the development of a new affordable 600 and 750cfm vacuum secondary street carburetor. The unique design utilizes a secondary metering plate with changeable jets, eliminating the costly secondary metering block unneeded for most street applications. The Slayer Series also offers all aluminum construction and hand-built quality. We feature Quick Fuel Technology Hot Rod Series Carburetors at low everyday prices.