I have a 59 Chevy Apache short bed truck w/4-link rear, IFS, 700R. I want to buy a 383 that will handle A/C, P/S, P/B, run on 91 octane, etc.. What would be the highest HP/Torque #'s that I should go for ? Basically I want the most power and still be streetable/reliable. Any input is appreciated because all the machine shops/engine builders by me are telling me different things.