What do you think?

Yeah, I just meant that the factory spec was usally higher than the actual ratio, so your to the good there. I had a 69 383 that was not a HP, but it had about .010 positive deck pistons, IIRC, unported 906s, and a 474 purple shaft hyd cam in it, that thing was a dingle honed backyard special, but it ran strong from 3000 up.. I think your motor will be killer