Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body and corrosion-treated

and corrosion-treated

They also offer the potential for improved fuel economy by making the engine more efficient

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

they also provide your engine with cleaner air for better performance

These combinations start with a reliable Speedmaster 9

Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body and corrosion-treatedThese 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.