Should I go Big block or Small block?

I voted 360 because you woul get better weight distribution than with a BB. You could use it as a cruiser or race it depending how you want to build it. A 360 with 375 HP or more would make a nice plaything and put away BB too. Depending on your budget the sky is the limit, power wise. You can build it to rev high but be sure it can breathe too!