I didn't get a chance to check when I got home, but I think I figured it out. One of the last projects before winter was replacing the stereo, I believe I found that clip under the dash and ran it over the shifter so I wouldn't forget about it. Since I forgot about it, I assumed it was one of the wires that ran through center console somewhere. I am almost positive it is part of the ECM. I just dropped in a 389 with RAIII heads, is there anything I would need the ECM unit for ? If it is indeed the ECM I would like to get rid of any excess wiring I can... right now it looks like a rats nest under dash and under hood from previous owner... I will check this evening for sure though...