Promax or Stealth heads???

Bobzilla said
I would suggest doing a custom camshaft for your 383 and nothing else at this time, or not even the camshaft now. Both of those heads are ok, but if your goal is a 400 based 470ish build in the future, just start spending money in that direction, then go with the Trick Flow 240 heads for a kick *** street/strip engine.
Do it once and be happier. Best bang for the buck.

I hear what you are saying, that is why I thought I would see if either of these heads would work on the stroker in the future. If they won't be good on a stroker then I will wait and just save up until I can do the 470. I know the 516 heads are not great but I can live with it for now because I know that motor is coming out one day.