I believe I am hitting the rev limit on the stock cdi to the best of my knowledge. The dry pipe hit 6960 at best and I did manage to get the Coffman's there too but in hindsight it was probably due to the pump coming out of the water. I plan to send in both my cdi units to OCD for the rev limit mod. The Coffman's from what I have been told and read typically signs off at about 6500-6700, I was able to get at best under load around 6720 with that one.