Yet another cam recommedation thread...

That 360 build you have is very similar to there create engine. Use the Purple 292/.509 cam and 4.10 gears w/ a 27 inch tire. You won't be overcamed. I'd run the DP and learn when the engine likes to have the secondaries opened up.
Tune the chassis to run and a few pounds in a diet will be a good move.

The create engines are known to run low 12's in street trimed cars.