[myjeepsux420]

I think you mean the jeep has an idle of 800 rmp, not 8,000. Easiest way to check for a vacume leak is to take a can of carb cleaner and spray it around the hoses while the jeep is @ idle. If the jeep suddenly tries to stall when spary a certain spot, you've located your leak. Usually with a vacum leak, the idle will go up and down constantly.