Thanks Brent. If I go with a larger engine I'll probably get a complete engine like your 347. That looks like a great deal! I just hate to dump a perfectly good engine. At least while it's running good or until I blow it up. Good thing my wife doesn't check this forum.
I read an old Car Craft article that got almost 400 HP out of a stock 302 by adding 165s. I'll see if I can get close. I'll probably try the 165s with the stud mounts since the pedestals can't be adjusted. I mainly don't want to put more $ into the bottom end by doing mods to get new heads to fit. I would rather just spend it on a new motor later even though I don't mind spending a little on new heads now. If that makes any sense. Plus I don't have a good shop to swap the motors. Been looking for a while. Changing heads is no problem.