The O/P could take one of those 11/32" push rods to a machine shop and have them tested to see how much pressure/force it takes to push the ball into the push-rod. That would defiantly something I would want to know. Now, that you know your open and closed spring pressures, you can kinda work backwards to see what is binding. Hell, he can run the engine with just the outer springs installed to break in the cam. Great time to make sure there is no coil bind on springs. Can you put a feeler gauge in between the springs coils at full lift?
__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 3:90 gear. 28" slick.
Best so far 9.95@135 mph. 1.39 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exhaust
950 Quickfuel.
|