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 intakes are 50-state street legal when used with the correct carburetor and in the correct appl ication.Made in USA This dual plane manifold is designed for the street rod industrial and the engine swap market utilizing small bloc k Chevys with 1996 and later Vortec (L31) cast iron or the new Edelbrock E-Tec aluminum heads without EGR.This manifold has provisions for external water bypass H.E.I.
