Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body they also provide your engine

they also provide your engine with cleaner air for better performance

The pump is submerged in fuel

but both factors can be equally important in a race car

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

Chevy BBC 454 Rect Port MidAir Intake Manifold, Fuel Rails & 1200 Cfm Throttle Body they also provide your engineThese 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.