I have had my 5-speed in for over a week now, and I am currently running a #5 plate in my small 160 pump. I was wondering if I need delivery valves before I can put in 370's. Will they add alot of power with the pump like it is? Also, do I need to swap my #5 plate out for a #11 for more power? Can someone shed some light here, the pump is a small 160.