Mild 383 build

273 said

Not to me, long stroke and torque which some how turned to low cr and 292 cams torque ability.

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Lolol!!! OP's proposed combo; "3000 stall", & "292° cam", then the pistons. Your dyno chart resembles neither a 292° cam @.006" tappet or worse @.015 tappet lift. For an under-cammed engine to only pick up ~6-7hp @3K shows it's a loser at low rpm, the combos You posted will all suck w/a 3K vs 3.8K stall...but the 285° unit will be killing it there.
Using those "% gain/CR increase" charts is really for a narrow range of "street" cams, not for cams in the 292° range, it just isn't.
Lets not ignore the fact that BBM's have horrible open chambers & plug placement that burn SLOOOWWW.