'89 roller-cam LA 360 w/Magnum heads - new roller lifters not pumping up

In response to post #5
Yeah, I thought of that,a while after I posted....sorry.

In post #3, you talk about priming them in a drill press. That's a really good idea. But to make it work, with cantankerous valves, you might have to do the valving manually. This would involve opening and closing the orifices manually to prevent reverse flow from just pushing the same fluid back and forth, instead of through. This sounds tricky, and shouldn't be necessary,especially with new lifters. I once had to make an apparatus to do this very thing, but for a Honda motorcycle.For me, it solved the problem, and it never came back.