Nice job your right 300cc cross section ain't big especially for that 472ci. I've got a set of SBC heads that have a 338cc port on a 510ci motor. Thanks for posting


Peter. Australian Charger, alloy block injected 410in, w9 na 9.03@148 leafs 3000lb

1967 barracuda 605 hemi Stage5 millennium 8.2@170