Jusst installed my new Circle-D 278MM 3000k converter and WOW!! THis thing is the best part I have installed. It has the best drivability ever. I also softened my 2nd gear shift springs. The stall is not at all noticable in normal driving. I have not got on it yet, waiting for 100miles. Anybody thinking of getting one should stop and just buy it. Even with out a cam install!!!