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123mm “HB” Hi-Boost Throttle Body – Built to Win
NHRA Approved for 2027
This kit includes two 3
Cast JLine powder coated valve covers
Carburetor Spacer 4500 / 1.50" Open Lightweight coupon 123mm “HB” Hi-Boost Throttle BodyWilson 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
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