Good question, I'll check with my engine guy and post it tommorow on the mod page, I know that the oil does not flow through the galley like it did from the factory, 100 % goes from the pump to the filter, I do not think we had to plug anything, but I'm not sure how that worked. I thought about it but never asked. I'll check and post it on that page cause I'm sure others are wondering too.
Todd