What is the cranking compression number? If it's in the ballpark, the cam should be close. Disconnect the coil and see if it cranks quicker. If so my bet is the ignition timing isn't where you think it is? Maybe it's being influenced by something during crank only?
Doug
Cranking pressure is 120 psi atm, taking in that that's new rings & a valve n seat job on a big duration cam, I would say we are about right. Timing on the crank trigger is set at 38* which is normal for us, but I will check the laptop for the timing curve to see if anything has changed, but we have been running this combo for 5x seasons now, just strange how this time it's a turd.
