What do you think it could run?

What do you think that might add? Roller rockers may be 10 horse? (improvement is usually in the accuracy and not as much about the friction) Torker may be 15? .030 with no increase in compression maybe 10? Just spit balling off the top of my head.
sure, but hey, 35 ponies !! :) That right der is 370 !!! Now, those fender exit headers and bumpity cam have to at least be 55 hp !! 4 and a quarter, slam the hood and get in the staging lanes !!! :D