I've got an '85 350 with a Quadrajet on it. I don't know if it is original. The idle solenoid quit working. I don't have voltage from the harness(when the key is on.) I put 12 v. across the solenoid and it barely wiggles. Usually it would pop out with an audible click. The harness in the truck is suspect. It was rewired before I bought it. Does anyone know what voltage should be applied to the solenoid in a properly working system? John So Much to do, So LITTLE cash.