Stockish 340 upgrades, cam needed

I think with that last cam suggested by GE
Proud piston for a good quench of .038
And that you live 2200 feet above sea level will help as well.

It may need a slower centrifugal advance springs (stiffer) added to the distributor.
Or at the vary worries, have to kill a couple of degrees of total timing out of it, in the heat of the summer.