Sounds similar to the 464 I’m building. Are you looking for a roller cam or a flat tappet?
I went roller with my build and originally had a 230/236 picked out, but the crew here urged me to go bigger so I’ve got a 236/242 .521/.540 114 going in now. I chose a 114 because I have A/C, power brakes and an auto. You could probably go tighter with a manual to get more lump.
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Ken
'68 GTO - Ram Air II 464 - 236/242 roller - 9.5” TSP converter - 3.55 posi ( build thread | walk around)
'95 Comp T/A #6 M6 - bone stock ( pics)
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