Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.825" Bore) fuel We port the plenum of

We port the plenum of the intake manifold all the way through the runners

IAC port included

- 8 nitrous jets for requested HP level

FAST® engineers teamed up with airflow specialists at RHS® to develop polymer intake manifolds for GM LS based engines

Wilson Manifolds 100 degree billet elbow made for 65-92mm throttle bodies and a 4150 intake manifold

Carburetor Spacer 4500 / 1.00" Tapered Lightweight (2.825" Bore) fuel We port the plenum ofWilson Manifolds Tapered Spacers feature a computer generated variable radius taper design that maximizes the airflow through the carburetor and enhances air fuel distribution for more horsepower. Part throttle performance and distribution are improved by redirecting the flow pattern created by the partially open throttle blades and gradually reducing the velocity of the air fuel mixture entering the plenum to allow for a smoother transition into each