Most of the small block builds around here are pump gas stroker 408-416 inch jobs with a max at say 11:1 that make under 600hp...after that they jump up 700hp and up stuff with big heads and aftermarket blocks. I don’t recall anyone I know really building at 12:1 stroker with a stock style head, this is most likely because it would need race gas and not really make a bunch more power....I’m going to see how this pro maxx stroker does on the dyno before I buy a top end for my stroker.