Carburetor Spacer 4500 / 2.00" Tapered Lightweight (2.550" Bore) spacers Required by all sanctioning bodies

Required by all sanctioning bodies when a nitrous oxide bottle is mounted within the driver compartment

While the new stylish

* Wilson Manifolds is the only manufacturer that offers multiple heights for 4500 carburetors

Even though the plenum is sectioned open to change plenum volume & the runner length is changed

there will be an additional $600 charge to install all of the bungs

Carburetor Spacer 4500 / 2.00" Tapered Lightweight (2.550" Bore) spacers Required by all sanctioning bodiesWilson 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