Anybody knowing the distance between camshaft and pinion shaft? Trying to align the cam bushing in the cam cover with the one in the case I found an approx. difference in the hight of the cam bushing between case and cover of 0.01". Measuring three different Panhead cases (original ones) I found differences in hight up to 0.008". I have not measured different covers yet. What should the distance between cam and pinion-shaft be that the gear lash can be properly adjusted with the different pinion gears?