How much oil

some of the evac kits dont' work with mufflers. plus the pipes in the collectors have to be installed at a 45* angle and be cut at the same angle. I like to weld the 45* cut at 90* to the collector. if that is good maybe you will have to invest in a pump kit. are you putting 7 quarts in the motor? depending on the rpm you are turning you might try 5 quarts. I suppose you are using a tray or scrapper?