I am going to test it on a dwell meter over the weekend and see what I come up with. What should the dwell be set at? As far as water being in the fuel I am pretty sure that is not the case. I thought that was a possibility so I drained the tank and refilled and nothing changed. I am going to set the dwell right on the money and clean all of my fuel filters and try her out again. <br /> I was thinking possibly a valve problem once the engine was warm so if the problem comes back im going to do a compression test when the problem occurs and see if I have any weak cylinders.