Advanced YJ Jeep Wrangler Forum
I have a 1990 yj . 4.2 engine. Yesterday the guy who does the work on the jeep put in a new HEI dizzy and a new 2100 carb . The cat was taken off and hi-flow muffler put on before the carb and dizzy. The problem I was having before was that going down the road in 5th gear it would start to slow...