Quickie Timing Question

[USMC302]

test and tune, you will hear it trust me, it is a higher pitch than your exhaust. and the car will be slugish until you back off a little if you have too much. You want run the lowest octane possible without pinging. I would try 91 octane to strat with and see if it pings or is lugish, then adjust timing from there, if nothing works then go 93. Good luck