Ok, ive got a 87 R10 with a 305, TBI and a coil-out-of-cap HEI. I suspect the computer is bad. I have put a new ignition system in except for the coil. I know the engine is mechanicaly sound. I put a mechanical distributor in, disconected the computer and it ran fine. I another odd thing, when i hooked up a jumper wire to see if the computer would give me a code 12, a clicking noise came from the TBI unit. Please Help!!!!!!