[ponchjoe]

I would build it to 69 350 HO specs of going 350. These were rated at 320 hp.
You’d need to find some better heads like 48, 12, 13, 62. These are big valve screw in stud heads.
The Pontiac 383 stroker is cool but expensive compared to 400 stuff. Surprised there’s no 400s around Idaho. If you’re considering the money for a stroker why not just have Butler, Kaufman, or Pontiac Speed Shop (my preferred) build a short block and ship it to you. That’s the best bang for the buck in my opinion.