do u really think honda employed much guess work when they were forking out the millions in cash to get your motor ready for production & spit out the best balance of economy/emissions/power/reliabilty it is capable of?

hence the mark on your crank pulley & the sensors in the dizzy base feeding this timing value to the ecu so it can run the motor at optimium & agreeable timing.

best timing is to know what the actual timing is & be able to fiddle it from that known base.so best to get the motor & ecu agreeing on whats going on first.

if u want to fiddle advance for power,then u really need to get on a proper dyno,as the butt dyno will not give much if any indication on gradual increases in acceleration rates,butt dyno only detects big torque shifts,which fiddling a coupla degrees of ignition advance aint gonna produce.