Dave:
I usually follow right along with you, but this time... Can you explain
further?
"If they do not rotate it can be caused by the timing gear being machined to
the wrong dimension".
How does that stop lifter rotation? Is the gear too thick or thin pushing
the cam too far in either direction?
"Vacuum pump on crankcase set too high".
With vent holes throughout the engine, the pressure is sure to equilibrate
without any delta p. How does high vacuum stop lifter rotation?
"Look in Stef's catalog and see if they also sell spray bars to add oil to
the top end to cool the valve springs.."
O.K, they don't sell spray bars...
"Then ask yourself how important the restrictors are. They were originally
used to keep more oil in the oil pan if the sump was small and the rpm
high".
So don't run restrictors and flood the springs, yes/no? -Elon
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