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Posting the cam specs may help.

Its hard to tell a numer though as the head porting and tune will make big differences.

At a guess, id say the small rear housing ones would be quite similar to HKS GTRS's

750-800rwhp

You probably won't make much more than that even though the turbos should see you clear to 800. The pump fuel is not good enough for much over the 750mark

I should also point out that on 22-24psi you would probably stop at around 400rwkw

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