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5/8 V 1975 - 1979 Chevrolet El Camino 4/8 V 1977 - 1978 GMC C15 3
59/6 V 1989 - 1993 Dodge Dakota Sport 3
87/8 V 1968 Pontiac Firebird 350 3
91/8 V 1971 Plymouth Fury Sport Suburban U/K/8 V 1968 - 1973 Plymouth Fury I Base 3
7L V8 1987 - 1988 Chevrolet R20 Custom Deluxe 350/5
Holley Mid-Rise Plenum Base Adapter Kit - GM LS1/LS2/LS6 300-267 fuel-tank-vent-hose 5/8 V 1975 - 1979The Modular Mid Rise intake utilizes the popular Holley LS1 LS2 LS6 cathedral port Mid Rise 2 x 4 intake manifold along with a plenum base adapter and a Holley 92MM EFI plenum top which converts it into a Mid Rise EFI intake manifold. For use with LS Dual Plane Mid Rise intake manifold base to adapt to modular tops. NOTES: Holley EFI LS main harnesses have a map sensor connecter designed for use with an LS1 2 style map sensor. The 558 416 is an
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