Originally Posted By Transman
A question for fast - in theory, wouldn’t weaker valve springs allow quicker and more violent lifter separation/pump up?

Wouldn’t weaker valve springs take longer to “pump down” the plunger versus a stronger spring?


I would think so.
In my case, the tired old 361 had the 100,000 mile stock single-without-damper springs...... so not much pressure.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads