392 stroker oiling problems

The tubes may not line up perfect. That means nothing. But, there are other mods to do. As was mentionned, the mains should be enlarged. I go to 5/16, because that's the size of the passage's entry. You should also have a cross over tube. Was it the #3 and 4 mains that were the problem? I dont think I'd run a -10 either. Make the feed at least as big as the suction lines. You dont want the line to be the restriction, you want the block feed passage to be the restriction. Do you have a crank scraper? How deep is the pan? A windage tray and scraper combo would go a long way to help get the oil down away from teh crank quickly. Also, additional drainage holes in the valley help. Look at the parting surfaces of the caps. If you can, get a camera and post some pics of the bearings (front and back) and the cap's mating surfaces. Your guy didnt get the oiling system right. Only parts of it. Honestly, ship it to Ryan at Shady Dell Speed Shop. Dont find one local. Find one that can do the work the right way. Also, at 650hp, your stock block is beyond maxxed. For that application, you should have replaced the block with something better.