Send out your distributor and have it recurved with a good street strip curve ..... toss the 750 they are way too big and run a 570cfm street avenger (ran one on my teen to the tune of 350hp and 380 ft/lbs 6100 on an engine dyno 318 .040 up, 9.5 to 1, 302 castings 1.84 intake valve 1.6 exhaust...