Performer manifolds are dual-plane low-rise intake manifolds with a 180° firing order and patented runner design that you wont find on other brands. This patented design greatly improves torque over a wide RPM range especially off-idle through t he mid-range. Throttle response is excellent.Performers are ideal for passenger cars trucks 4 x 4s tow vehicles and RVs. Most performer intake manifolds are 50-state street legal when used with the correct carburetor and in the correct application.Made in USA Designed as a stock replacement/street legal part for 1955-86 small block Chevy 262 283 302 327 and 350 V-8s with OEM 4 bbl. or an Edelbrock E1400 carb except those vehicles equipped with a stock EGR. This manifolds accept late model choke water neck air conditioning alternator H.E.I.
