Anyone with a near-'87 K5 with the HEI coil separate from the distributor, please take a look under your hood for me. As you look down at the top of the HEI coil unit, there are 2 gray connectors plugged into the top, each with one pink and one white wire coming out. I have an un-mated white wire coming from the passenger-side connecter. The wire is about 3" long and ends in a thin, single-contact black plastic connector... but there's no matching connector in sight! If you know what it is, or better yet, where it connects, PLEASE post a reply. I've just installed my newly rebuilt 350 (now 355), and although I've adjusted the timing, it won't start. I've hunted down the timing to where there's no more backfires, but still no luck. I'm definitely getting fuel through the TBI and spark at the plugs. I've added a 1" spacer under the TBI, so if there's another procedure I need to perform, please loan me a clue. Also, if anyone has the tune-up/timing procedure from under the hood for this rig, I'd appreciate a reply on what it involves. My decal is all worn off! Any other advice? '87 K5, 355ci, TBI w/1" spacer, 700r4/NP208. Thanks MUCHO!