I adjusted the valves with the motor hot, static and I thought all the lifters on the 58's were solid? My 235 does have 30lbs of oil pressure when driving.

52 Chevy 3100 5 Window, LS Swap, 4spd Auto, Vintage Air AC / Heat, CPP Power Front Disc Brake Conversion with bearing upgrade, Power Steering Conversion, LED Tail Lights