440 Timing Help

Wazoo - I have my total at 37*, I use to set it by brining it to about 2900, and adjust from there. too much / little, you will fight with the heat, pinging, sign your out of whack a bit. Now I use a MSD-6A2 and locked out distributor and test on the back roads/track like timmy says for best performance, still at 37* total.