Magnum 360 build. (HP/tq?)

No worries there. One, I did t make a guess but asked for information on the engine while you made assumptions.

The basic formula assumes much of the OP and the builder, which could be correct…. But would t you want to know some FACTS rather than stick your arse out for the world to see?
If he gives them sure, I only gave an example so far, but it's very unlikely that engines making outside of 1.15-1.25 lbs-ft per cid 1.2 is a fair guess and doubt peak power will be outside 5000-5500 rpm. And I did google what cam he could be possible running etc.. when I said my eg.. guess.