Mine has 117,000+ miles. But still runs great. Bama tuner, I'll have to look into that. I already run 93 octane anyway, in all my vehicles. It's not overly expensive here, and better to have it and not need it, than need it and not have it. My V-6 Ranger pings so damn bad on 87, even 89, barely gets by on 91. But yeah, it's got a CA and modified exhaust, chip on the computer. It's my bad weather vehicle, so the bikes, Mustang and Lightning can stay in the garage and stay clean.
One can't have too many toys. My Lightning is my kick ass vehicle, as is my 2008 B-King. The B-King is a 9 second vehicle. F*cking scary fast. Going out and ride it here in a short while. ;-)
I put iridium plugs in my Ranger. and 5000 miles later, the center electrodes were gone on all six of them. Now days, I jsut stick with Motorcraft double platinums. The center electrodes last longer. I use NGK TR-6 in my Lightning, gapped less than stock, but that's typical for any application on a Lightning where you're running more boost than the stock 8 pounds.