vaccum pump or not
 

I am getting lots of oil in the bige after hard runs with 1671 blowers . Seams like I might need a vaccum pump to fix the issue. Any recomendations on a kit ? Also I cant see where the oil is coming from. Doesnt seam to be coming from the dip stick. I guess it finds the weekest joint somewhere. Hopefully not the rear seal!! I have a solid line plumbed into my flame arrester from all 4 valve covers. Perhaps 2 lines per valve cover would work . Any thoughts on the issue? I have priced a moroso kit . It was abt 500 bucks per kit.

THANKS