77 360 tuning help please

All depends on the cam. Try giving it 10-12 initial.Or just say F*ck it and go 32-34 total all in by 3000 rpm. If it has an aftermarket cam, it may like lots of timing. I have a 340 hp 350 sbc in my vette, and it wants 25 initial with 35 total all in by 3000 runs like a champ.Came off the dyno that way.