ok whatever.
We can agree that 1990-95 LT5's have flat tappets and the spring pressure is the same for all years. It should be kept NO LOWER then 1000ppm zinc. If you have a push rod motor with even higher pressure springs, ( lobe to lifter contact ) it should have 1300ppm zinc and phos follows with 100 to 200 lower count. This is basic motor building guide lines. I'm no rocket scientist but I know some
You can go to any cam makers site and look up what they recommend. I would believe they would know best. You will come back with my same #'s.