[cjperformance]

I'm not an expert, but what I've found... in a general sense... is that HP scales linearly with pressure. Divide boost pressure by 14.7 to get an approximate percentage value and then multiply your NA horsepower by 1 + the percent from the prior calc.

5 lbs of boost ÷ 14.7 = .34 then add 1 to that, then multiply your NA 550 HP by 1.34 for 737HP @ 5lbs and 770 @ 6lbs.

Thats all a nice theory, but in reality it will vary greatly depending on many things. Addl drag from the blower will reduce that, other components may be a restriction at higher power level etc..., so with a good fudge factor, i would guess 650RWHP to 725 RWHP.

I didnt read anything about if your bottom end is forged, so meth is probably risky. I wouldnt want to run at 650-700+ HP on pump gas + meth on a non-forged BE.

I dont know how much E content your setup would handle with that fuel lobe. I just dont have any experience there.

Not sure if the LT4 stuff will support your fueling needs either. I'd think about port inj.

Again not an expert.