I have just completed a rebuild on my 1987 360 and went to prime the motor through the distributor hole and my gauge is saying i have no pressure. So I took the line off at the gauge end and there is no oil getting to the end of the line. But when I am priming it oil will rise in the timing cover and come out the distributor hole. When I took off the oil filter it was full of oil and when I took off the bypass it also had oil in it. Did I by chance not put something together right. Thanks for any help.