Re: Valve adjustment 1974 302
If they are out of adjustment by just tightening them down, I would start troubleshooting. Really the question then would be, why do you think it needs a valve adjustment?
The positive stop works pretty well in most applications unless something is mismatched. If that is the case, the best way to do it is to buy an adjustable pushrod, measure zero lash/zero preload length, then add .060 and buy pushrods, (before you buy, check that the length works for all, if your valve job is bad, valve tips are worn, or some other issue, correct first) or if you intend to make future changes or any real spring pressure, swap to screw in studs.
70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor.