yj no power

Hi, I have a '89 YJ that I have had for 10 years that has a problem that I cant figure out, after driving for about 10 mins it starts surging and finally dies. I was thinking originally it is a carb problem, and replaced the carb with a new motorcraft. The problem is still there, next I...

Hello and thank you for letting me post here. I just put a new 2.5l long block in my 89 wrangler and it started up and ran fine. I proceeded to do the break-in process and drove it after that to a friends house. Ran great, when leaving there, it started running very bad after starting it back up...