RB 180 Headers tight fit

Your lift numbers are from a Comp Cams Extreme Energy series.

That cam is 230 int/236 ext. Probably much closer to what you will actually get from the cam guy.

With a 413 if everything else is in line, peak should be in the 5400/5600 range. Depending on Gearing/Trans, It may be a little soft down low with the 8.3 to 1.