My old school 340 upgrades and results.

gtsdude said

Any +.050 valve locks available for your type of valve?

Click to expand...

I will check on them.

I just got the spring tension of my old vs new springs. Old springs have 180 seat pressure and 460 open. Pretty stout spring. New spring mind you it isn't broke in , comes in at 210 seat pressure and 510 open. Good news is broken in it will be very close to the other spring. Bad news is both seem too high.