MAYDAY,MAYDAY!!!! I have 84CJ7,I-6 258. just had engine rebuilt and a new carter-bbd put in. The proablem I' having is that when I'm prepared to start moving and give it gas I have to do it with ease because it has a tendency to become sluggish if I give it to much gas. Even harder if I'm at a red light at the bottom of a hill and start there....the momentum is what keeps me going up?..the funny thing is that she runs really great on the highways. But gas mileage has really suffered and it has never done that....Now the things that I have tried so far to see what the trouble could be is, running it without the aircleaner cover, running it without the smog stuff, fiddled with carb jets (no expert),checked the timing................I do have a thought though does the diameter of the vacume hose from the vacume advance to the carb matter? Because it's smaller than usual....... .ANY IDEAS ANYONE PLEASE HELP!!!!!!!!!