MSD 8387 READY TO RUN DISTRIBUTOR, RB 426/440 $280.- MOPAR ENGINES

Hello, no the grey wire with red/pink color/quick connector in pictures, which is separate from main plug, is for the tachometer feed. I have air grabber air cleaner, same as 6-pak air cleaner in height, and it clears easily. As far as the minor interference with cylinder head, some minor sanding...'may be necessary'. Unusual, I know, but that casting is 1/2 thick , minimum, and a 1/16 inch or so in a small area is nothing to worry about. I had no trouble with that slight modification using a disc grinder with a 120 grit sanding disc and a few quick hits. Let me know if I did not give enough details. Works great, plug/play unit @ great price. All related parts come with it. Had it on my 69 440 Roadrunner. Thanks, Steve