Exactly what 76/80 said.Check the port alignment on the intake with a gasket, then to the head. If the ports and the bolt holes line up on the intake then slotting the holes will let it bolt up but the ports won;t be aligned. Most of the Edelbrocks I've used recently have had ti have 0.040-0.080 milled off to fit.
I do hope since you mentioned Edelbrock Heads that it is a Performer RPM intake.The plain Performer would reduce the flow on an E head signifigantly.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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