Valve Spring Pressure Loss After Break-In

furrystump said

I haven’t used Isky springs, but I would install them and run them. Check them after a bit to see if they gave up anything. If they did I would shim them. I run PAC’s,never gave up enough to worry about. Swapped them last year because I’m a worry wart.

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I am now looking into a couple of the Comp springs (985 & 925) instead of the Isky's (6105SP & 8005SP/8005A) that I have been looking up. The Iskys are taller springs and they are showing .140" or more clearance to coil bind at my max lift range. I believe that I can get the two Comps mentioned into the .070"-.090" range with this new setup.