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OPGI Price $469.99
Designed for 396-502 big-blocks with rectangle port heads. This manifold is a dual plane, high-rise intake with a 180-degree firing order. Made to produce high top-end horsepower and retain throttle response. This manifold has larger plenums and runners to match free-flowing exhaust, high-lift cams, etc. Intended for performance engines running up to 1500-6500 rpm.
Part #: CH23984