I finally got the time to swap out the pump. Now I'm getting 15 lbs at idle and 60 lbs at cruising speed. I'm pretty sure the problem was a bad tube nut seal. One thing I did find out was when,putting in a pump in a 56 passenger car,the oil pump drive shaft has to be installed in the distributor first. I got it to stay in the the dizzy by putting wheel bearing grease on the shaft.

Durham Missouri