Since you have a 750 Dominator you could copy my build and use your carb on a M1 4500 intake with the TF 240 heads. My low deck 470 made around 700 hp on unleaded pump gas with an agressive solid roller. If you run a street friendly roller you might knock 25 hp off of that which would put you at 675 on the dyno and maybe 625 in the car with exhaust and a manual trans. Auto will suck up a little more power.

http://www.hotrod.com/articles/test-intake-manifolds-carburetors-440-stroker-search-ultimate-power/