Looking to buy/build 500-600 fwhp 360

I bought a Blueprint stroker 9-10 years ago. Very happy. Still running the block,rods,crank from it. At least back then they won’t build you one with a forged crank. Pretty sure that has not changed. At that HP level and transmission you want a forged crank. I run high 11’s with solid flat tappet, fully ported x’s and stock 68 castings for intake and exhaust manifolds. Port matched and blended and the intake divided cut down. at 410 CI’s. With headers,good intake and a holley and a converter to match, get’s me to roll bar et’s. No nitrous needed. 600 hp is not that friendly to stock 360 blocks.