I don't think Freiburger and co. Would even do it. I don't think I'd do it...I mean who welds a rounded off cam and regrinds the lobe...yes if you are on a deserted island and you can't find a replacement cam. One of uncle Tony rules is no new internal parts, a little ridiculous IMO...They are both suppposedly starting with junkyard 318 ...also they can say "uncle Tony, what about our original callout?..." you have yet to prove reversing pistons is a actual power gain.