360 timing

10 degrees wont be NEAR enough initial timing.... Here is something else to consider, if you have to dial back your total timing due to spark knock, (and you will!) that engine is gonna be awfully soggy feeling by the time you get it to run on pump gas. The absolute best thing for you to do, is swap the pistons to something more street friendly, and swap the cam to something else as well. The cam in there makes best power where? Its a oval track grind, POOR choice for the street imo