I ended up with E/Q stock replacement heads,(Stock LA/normal 360 bolt pattern heads,a standard Edelbrock Rpm air gap,a custom Howard's roller grind. ( you want 230@ .050" & about .510"-.520" lift,with stock 1.6 ratio rockers. Run the Hughes 1110 valve springs,and matching retainers.The Mr Gasket 1121 head gaskets,are .028 " thick, against stock stuff at .050" ..That's worth a couple of tenths on compression. As for cams: if anyone's grinding hot cams where you are at, give them a call. If not: Give Oregon Cams a call, give them your info. You need a name brand grind: Bullitt/ Howard's /Comp.
Make sure it's on a cast iron core,not the over priced billet garbage that needs the dumb bronze distributor gear.
P.S: If the stock heads have good valve seats,run them..F.I no clue.. as for midc300 h.p., a cam with about 215-220 @ .050/112-114"lobe centers/.480,lift.. ,will do very nicely.
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