I seldom drive 'gaspots' ..... so have little to base a comparison on but, the TJ was surging in 1st and 2nd gear. It started instantly before the plug change, and there was no indication of any ignition problems. With the erosion of tip/ground of the old plugs, I'm wondering if they were installed at the factory ??
Mileage is 96,700 miles / 155,724 kilometers .....