93 YJ 2.5L with 33's. Everything runs well and it holds speed nice at about 80 km/h. After a while driving though there is the odd (cut-out/stumble/hesitation), kind of a slight jerk to it... Anyway it settles down for a bit and happens on and off, the more you drive the more often it happens... could it be temperature related, fuel, I really have no idea. ANy help appreciated!