Man Bart that is a bummer, I am watching your thread closely because once you break trail here I'm gonna try it. I sure can't offer an answer but the possibilities that pop in my head is first of all someone may have installed a belt previously that is the right length but marked for a different engine. #2 It was installed with the left bank that far out of time.But then how could it run?#3 I seem to remember reading that the cam to crank ratio is such that it takes many revs to make the cam marks all come back around to the belt marks once it is rolled off of perfect. I'm just rambling here but If I were in Reno I'd buy you a cool one and tell you that tomorrow someone that knows is gonna solve this so kick back for the night. Good luck. John