1. Yes hyd lifters. 51 car eng. w/pw
2. Gas is about 3 weeks old. New tank
3. I heat the eng up, adjust out all lash and then tighten 3/4 turn more.
Some guys say adj. 1/2 turn and some say 1 full turn. Tech Article says 1/8-1/2 or your going to have http://centuryperformance.com/valveadjustment.asptrouble.
So far I'm having trouble. The valve seems to be free. When I put in a new arm the valve moves freely.It is not stuck. Any ideas?

Scootin thru with a 52,
Good, Economic and Classic
1952 Chevy 1/2-Ton