Steve did some checking around, about the only think i could find.
"...in most applications we use the Crane 99893 valve spring, installed at 1.790-1.810", I set the intakes on the tighter side of the tolerance, I test all the springs and always put the ones with the higher pressures on the intake valves, since the intake valves weigh more and also have the momentum of the charge pushing on the back side of the valve while the exhaust valve if anything has pressure pushing or drawing it closed and the valve is lighter. On my digital InterComp spring tester the seat pressures on a new set of springs will range from 147-157lbs typically @ 1.800" and 380-390lbs @ 1.200" open pressure."
Posted by Dave Bisschop
LOL, when i first started in the 2007 build, i had the crower 60919 cam in the car, no issues except the usual oil problems ive been having, thought maybe better go to roller, i know its more expensive but i was worried about the ft breaking on me, figured this would only be a grand or two more...........flash to today, that sounds like pocket change with all the issues ive been having, but i will get this fixed one way or the other.
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