How low is your Idle oil pressure? With the needle bearing version of this lifter and harland rockers in a oe 440 block. I had about 20 lbs at a 1300 idle after the oil was up to temp

'68 Coronet 500 w/ Indy EZ-1 headed 446, 727 trans, 9" rear
First day at the track with SUV street tires and no traction: 1.688 60', 7.24 @ 101.79 in the 1/8 mile

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