OLDSMOBILE 307, 330, 350, 403 POLISHED DUAL PLANE HIGH RISE INTAKE MANIFOLD (WILL FIT 80 CC ALUMINUM HEADS )

Oldsmobile High Performance High rise Polished intake manifolds have a high-rise, dual-plane design. They produce incredible top-end horsepower, while retaining good throttle response. Our High Performance High Rise manifolds have larger plenums and runners to match the free-flowing exhaust, high-lift cams, and other modifications of a high-output engine. They’re intended for high performance street or competition engines that run from 1,500 to 6,500 rpm.  Our manifolds are set up to fit Quadrajet and 4150 square bore carbs . This intake will also work with are aluminum heads 80 cc . Will not fit are 69cc aluminum  heads with out machine work. See manifold listings for this manifold machined to fit our 69 cc heads