408 top end changes, new trick flow heads??

mderoy340 said

Do some research about compression ratio at altitude. Thin air requires more squeeze to make power. If you can tune it can be done. I would stick with .040 quench.

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Yeah I've been chatting with a friend of mine who builds very fast very nice Mopars and does badass engines for customers as side work. He's who knows the guys a Bullet and thinks I should get them to grind me a cam , but hes confident 12:1 on 94 pump gas is fine, run race gas at the track. "That small block will like it, be nasty on 12:1"

I also forgot to mention that Holley software runs my setup, so I can always pull timing where needed