On my motor, we found that with all the required
oil passage and drainback blueprinting completed, we still had to slightly restrict
oil to the heads when using a high volume/pressure
oil pump that I chose. Otherwise, oil still pooled too much. Ran it on a motor stand for a bit til we got the correct amout of restriction. I would venture to say it might be a little different with each motor dending on who does the work and how its set up. Good Luck.