How much HP and what do you think it will run.

All I can say is if you have never had experience with 512 ci of torque monster , you are going to **** yourself the first time you stand on the loud peddle. Mine is 512 RB Indy EZ opened to MW Comp ,264/268 @50 630 SR. 10.5/1. Indy intake Thumper 1050 Dommie.