Chevy GM LS1 LS2 2x4-Barrel Dual Plane Fuel Injected Intake Manifold Polished This is our top-of-the-line medium

This is our top-of-the-line medium profile LowRise+ Series manifold

1966-72 (1973 non-CA) passenger cars

They have injector bosses precisely positioned and machined for excellent fuel spray patterns and maximum power

that have a 4bolt pattern

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Chevy GM LS1 LS2 2x4-Barrel Dual Plane Fuel Injected Intake Manifold Polished This is our top-of-the-line mediumSpeedmaster LS dual 4 barrel, dual plane fuel injection intake manifolds allow the installation of dual throttle bodies on late model LS Series engines. The dual plane, equal distribution layout produces great midrange torque without compromising top end power.