I have a 90 wrangler 4.2 with a Howell 4.3gm fuel injection conversion kit. I ran it to the lake last weekend and it did great but on the way home I could smell gas fumes the entire way. About a hour into the drive it quit on me and would run only at a idle for about 5 minutes then it died. Twenty minutes later it fired right up and ran fine. I found no leaks and thinking maybe vapor lock but not sure.
