Ken you do what makes you happy on this one brutha... you have earned it. I am sure you will make it work. I have heard of guys stroking a 283 w/307 crank b4, but I always looked @ 307 as a "challenged" engine in the past like so many others. You will make it rip. Just keep going out to the shop & praying.... everything else will follow. Sorry I haven't been around here much lately. I hope you are feeling well these days. Scoot