Wild guess...something used for carbed applications...choke or something. I seem to recall a red and white wire that did nothing much but is fed off...
Ahh yes. That makes sense. I see it now. I am afraid to breath on the speedometer in fear of bending the needle. I messed up a fuel gauge and really...
Seller made a typo. Should read 1988. This will fit 79 to 89 grand marquis and crown victoria. Based off of what I have seen in the past this is a 87...