318 to stock 340 power level questions.

I think my 318 has about 330 hp based on my 13.34 time slip. I used the KB 845 piston(domed) and opened up the"302" head intake port to 360 gasket size. I did some bowl work, but used the stock 1.78 intake valves. i used a comp XE-274S solid cam with 273 rockers. I also used a air gap manifold & a 750 carb. So if you use a zero deck flat top, "302" heads, a comp 268 hydraulic cam and a 650 carb I don't see any reason you couldn't make 275 hp, especially at sea level. My 330 hp guess is up here at 5800'. Maybe just a little work on the intake side of the heads would be helpful.