<<<<<<<<<Jay wrote: after a new (junkyard) distributor, a new (junkyard) electronic ignition module, and a new muffler ..........................the temperature gauge and the oil pressure gauge both peg whenever the key is on. >>>>>>>>> Jay, if this happened right after the other work was done, it's possible that the wires to the temp and oil pressure senders have gotten pinched, or rubbed bare, and are grounding out. Check the wires from each of these senders back to the cluster to make sure they aren't grounded. Regards Michael Roger and Michael in San Diego 67 Crown Convertible "Moby" 73 LeBaron Coupe "La Bomba" 56 Sedan