ProComp/Speedmaster aluminum heads

PRH said
Not accounting for the difference in DA, @34-3500lbs...... the 1.5mph improvement shows a 15hp gain.

I’ll be looking forward to seeing what it goes in better air, which an optimized shift point.

I'm not even sure what it wants to shift at.. it spins to the rev limiter (7200) so quick it's hard for me to feel a layover point. I obviously dont want to spin the sucker into Oblivion either.