make your own pushrods
Great Info Pishta, just as an addition..
The method of removing the ball from the pushrod tube and shortening the tube works with (some) after-market pushrods as well,, only the ones I've trimmed weren't welded,, just friction fit.. so by putting the hardened ball in a vise,, and just a few seconds of propane heat on the tube,, twist and pull..
I use the valve tip refacing tool on my valve refacer to square the ends,, and it allows you to remove material a thou at a time,,
I'll post a pic of the simple jig I made for checking the tube length before re-unstalling the tip..
hope it helps..