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Designed for all 396–502 engines with GM aluminum heads (1975 and earlier) and large oval-port iron heads
Has a dual-plane design with spread bore flange and a dual-bolt pattern
Has no provisions for a hot-air choke, but will accept a divorced choke or electric choke
Accepts air conditioning and alternator brackets
Use intake manifold gasket Part Number 12366985 and bolt kit Part Number 12367959
NOTE: May not fit on many Corvette models. Manifold height is 6" at the rear and 4.5" in front. Check for hood clearance before ordering.
NOTE: Open carburetor spacer is not recommended with use of dual-plane manifolds.