Small Hughes cam in 318

AJ/FormS said
If you go with 3.91s, she'll have no problem at 9.25 burning any old gas. 7.5 is not in the basement yet. But again, band-aiding the cam with head-milling, costs about what a proper cam costs, and no milling;cuz cutting the heads is gonna require cutting the intake, and maybe the valley ledge too.
If you put those big-port heads on there with that cam, you are gonna need some higher compression, not for the pressure sake alone but also to get the air flowing early enough to not have the bottom end go limp on you.
So now, just what is your deck height, and are the pistons flat-tops?

Depending on what 360 heads you have, the chambers are between 5 and10cc larger than the teen heads according to the charts. CC ing them will tell the truth. There is a loss of compression along with the camshaft size. I think the .215/.223 is a good place to start for a relative stock teen but with the advertised around 270° crowding the stock converter size for sure. We didn't hear how far in the hole the pistols are. Stock or have they been replaced? Quite a few unanswered questions.