Hey Joe, do you have chrome FR500s? I live in Kzoo, not too far from 131 and a couple months ago talked to someone that had a Cobra that looked just like yours, rolled in with FRs then swapped them for bigs and littles. Ran 10.80s (then), having issues all day long until the last couple of passes?
BTW, like I said, I live in Kzoo and a few of my buddies from the local car scene here were drooling over your car. My buddy Ken ran his new best in his silver 10th anniversary.
Anyway, good looking cars guys! It's funny you guys are amazed at how you love US131, us local guys go up there so often we actually complain about it quite a bit. Anytime you Mustang guys want to have a track day/meet up there, make sure to post up and I'll gather the crew from here!