Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body as well as 1/3 smaller

as well as 1/3 smaller

they also provide your engine with cleaner air for better performance

Use the stock Quadra-Jet carb or 500-650 cfm vacuum secondary carburetor

These combinations start with a reliable Speedmaster 9

1966-72 (1973 non-CA) passenger cars

Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body as well as 1/3 smallerThese MidAir Series Manifolds includes a 4150 Series 1200 CFM Billet Throttle Body. Our dual plane big block manifold is now available with rectangular ports, Dual distributor hold downs and Four corner water ports. Fits big block Chevy rectangular port cylinder heads on standard deck blocks.