Appears to have been the timing. I finally got time to try it today. The timing was about 45deg. I moved it to 28deg. Had to extend the slots in the pickup to do it, but I finally got it where I wanted it. Fired right off and ran great after it warmed up. No missing or sputtering. Didn't seem to burn as oily either. The final test will be flying it, but that will have to wait til at least Thanksgiving day. No time off til then!!! Thanks for the help.