This is an outstanding high performance street manifold with all the latest manifold design refinements. It features a full open design under the plenum for maximum air circulation to help keep the incoming charge cool for premium power production. It features a spread bore carb flange for those of you who want to run the original Rochester carburetor and we also include a square bore adapter plate and gasket for those who desire a square bore (Holley, Edelbrock, Carter) carburetor. The manifold can be drilled and tapped for nitrous nozzles and is also available in versions with machined injector bosses.

Note: Use Professional Products 10618 Fuel Rail Kit with injected versions of this manifold.

This is an outstanding intake manifold that will fit under all stock Pontiac hoods including the Trans Am “shaker” style hood. Accepts stock Quadrajet carburetor. Manifold kit includes an adapter plate and gasket to use any standard square bore carburetor. This manifold is designed to work with any cylinder head up to 300 cfm. No heat crossover. Includes injector bosses which can also be drilled and tapped for nitrous. As-cast ports are a match to standard Pontiac cylinder head port. This manifold can be port matched to RA IV ports.

This manifold was dyno developed by Pacific Performance Racing, a leading Pontiac specialist.
(pacificperformanceracing.com)

We now offer this outstanding single plane manifold that will fit under all stock Pontiac hoods including the Trans Am "shaker" style model. Accepts a stock Quadrajet carburetor, but we also include an adapter and gasket for the popular square bore carbs. This manifold is designed to work with any cylinder head up to 300 CFM. It has no exhaust heat crossover passage. It includes injector bosses that can be machined for injectors or drilled and tapped for nitrous nozzles. As-cast ports are a match for standard Pontiac head ports. This manifold can be port matched to RA IV head ports. Check out our Harmonic Damper section for both high performance street as well as SFI-Spec race dampers for Pontiac applications.

This manifold was dyno developed by Pacific Performance in conjunction with porting expert Dave Bishop. www.pacificperformanceracing.com