Wanting 500 hp (or close) out of a stock stroke 360

I do all my own port work and have a SF-1020 bench for confirmation/measurement. The one time I had a big name Chrysler shop port some heads for me only reinforced the "need to do it myself" belief. J.Rob

Isn't that the truth! Everything sent to me never comes up to the flows on the sheets provided, with one exception, The CNC'd Trick Flow has been the best.