The Performer 454 T.B.I. manifold delivers outstanding performance for the street with complete emissions compatibility. Add our Performer High-Compression heads #60499 for even greater power gains. Performer #3764 is a stock replacement/street legal part for 1987-90 Chevy/GMC trucks with Mark IV 454 c.i.d. throttle body injected V8 engines. Accepts stock EGR in stock location. Edelbrock Performer 454 T.B.I. Intake Manifold 3764 Cast - EGR - Idle-5500rpm - 4 bbl - Chevy BB 454 - Acpts Stock EGR - Req. Throttle Brkt.(8019) - Street Legal - Street/Hi Performance UseFor Idle to 5500 RPM Street-Driven PerformanceDual-Plane Low-Rise Intake w/180 Deg Firing OrderPatented Runner Design Ensures Broad Torque CurveExcellent Throttle Response and Mid-Range Power50-State Street Legal for 1987-90GM TrucksAccepts Stock Throttle Body EFI and EGRMatch w/Camshaft PN and Head PNPackage improves 0-60 mph times by 1.70 secondsPit Stop USAoffers Edelbrock Performer 454 T.B.I. Intake Manifold 3764 at low everyday prices. Be sure to check out all of the products from Edelbrock including Edelbrock Engine Parts and Accessories, Edelbrock Intake Manifolds, Edelbrock Intake Manifolds - BB Chevy, Edelbrock Intake Manifolds - BBC.