Do domed KYB 399’s interfere with 302 cast heads?
I’d love to get 10+ to 1 dynamic compression out of the motor with cheap mopar heads,
Shooting for a DYNAMIC of 10:1 will get you into race-gas territory.
Again, depending on your Ica, say with a modest 62*, that will require about a 12.5 Scr, to net around 220 psi.
To get that pressure down to say 165psi, for best street gas, the Ica would need to be ...... are you ready .... 84 degrees. and your bottom end, by V/P comparisons would be about as strong as a factory 8/1, 273 2bbl.
Do you know how big a cam it takes to get an Ica of 84 degrees?
That could easily be around 308 degrees advertised at .008 tappet rise.
Working the math backwards, for a 318, your TOTAL chamber volume would need to be about 56 to 57cc. That's TOTAL.
Since you're an engine builder,
maybe you know how to make that run on the street,
with pop-up pistons, factory iron heads, and the monster cam which is NOT gonna run in those chambers until you make room for the Lift that would be associated with such a cam. and then the eyebrows are gonna cost you compression, if indeed you don't mill right thru the crowns.
IMHO, you are not thinking straight. If you made a bet with a buddy that you could do it, just pay the man.
But even if you could,
the question is why?
I'm not following yur thinking at all. That's gonna be a top-end racer, requiring a lotta stall, and race-gears in the back. and you'll have to stock race gas at how much a gallon?
This is would never be a street engine. and it would likely be well beyond rowdy, if you could even get it started for the cam-break-in.
But hey, I'm not a builder. They call me a Keyboard Kommando. But, if you want a fantastic recipe for a 360, I could be yur man. Mine is a real brawler.