Lifter plunger in the 59 deg toilet

More street than strip.
My 318 with the solid 528
Flat tappet, 3.91,3200 stall 904 28” tire ran 13.0 Last year.
I was hopping for 12’s this year with the hydraulic roller.
The spring pressure is 340lbs at 1.188 and close to 110 closed .

I used 160 on the seat minimum. And the lifters hate it.

That’s why I stopped using hydraulic lifters. Save yourself the grief and buy a QUALITY set of solid roller lifters (buy once, cry once and you are on round two), lash the valves at .002 cold and send it.

Screwing with hydraulic lifters is a waste of time.

And you can get the seat pressure to 200-220 and the valve train will be much happier.