Yes, you should see oil coming out of the pushrods. You wont get that with just a screwdriver type of primer. You have the proper type of primer. Power it with a 3/8" drill, and run it for several minutes. Lots of guys make the primers out of an old distributor, but personally, I would rather spend a few bucks and get one already done. They aren't very expensive. Just wondering, why did you use a high volume pump? It seems like over half the people rebuilding engines end up putting in a high volume pump, when they really aren't needed. I was wondering if it was your choice, or was it suggested to you by someone else? John