Our engineers have done it again with this all-new clean-sheet design intake manifold for the popular 1985-92 GM 305/350 TPI engine family that can be found in the Corvette, Camaro and Firebird. With its all-new high-flow design aluminum lower manifold, equal-length tubular runners and large volume plenum area – this manifold is making up to 50 extra horsepower and 50 ft lbs of torque on a stock 5.7L IROC-Z.
Helping produce about 10-12 horsepower of this gain is our “Power-Plus-Series” twin 58mm throttle bodies which is also available at a reduced cost in kit form with the new manifold. Like all BBK products – this new intake manifold system is designed to meet or exceed OEM standards and will bolt-on without other modifications.
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