I have a 1990 Jeep Wrangler, 4.2 inline 6. Has a weber carb (with snorkel), msd ignition / coil. Had it out today and ran great. Seems like was ok off road until I got onto open roadway, then noticed loss of power, minor backfiring, and stalled when came to stop. Longer it sat better it ran but still running a little rough, no issue starting. Me being a unknowledgeable mechanic touched top of distributor, believe one of wires and got one hell of a jolt, is that normal? and two does this sound like a wet distributor cap? has new wires and plugs, cap and rotor are recently new as well but did go through some good puddles today. Happens often, mostly after being in woods. Help!!!! Has no cats, just believe a cherry bomb muffler, maybe exhaust issue loss of power? anyone have same issues? WHen initially happens I can barely move mave to nurse it to accelerate cause has no power and stalls when accelerating. Seems longer sits better it gets but still idles a little rough, backfires, and noticed jeep was shaking.