Just got a set of AFR 165's

[90GT398]

well there are a lot of variables as to where his peak hp is going to be, depends on his camshaft. If he goes with what seems to be one of the popular cams right now the Comp Cams XE282 the peak hp is around 62-6500 rpm, if he decides to stick one of Comp Cams solid roller street roller's in there the peak hp is going to be around 68-7200 rpm if he really wants to rev it up that high.

If you decide to go the solid roller route prepare for a lot of maintenance, and lash adjustment's, and also a little more seat pressure on the springs, but there is nothing like the power of a solid roller.

You can also stick a solid flat tappet cam in there, and make almost just as much power, you will not have the ramp speed, of either roller but you will make power none the less.