Bought my kit in 2000 from a dealer in Tenn. It took me 28 months to build it. Modified 5.0 (305 rwhp & 308 rwtq) with a TKO, 3:55 in a 8.8, 2001 Viper yellow, 16" Team Three rims, 4 wheel disc and QA 1 coil overs and 4 link. A lot of hand made parts. Every winter I do major mods on my Cobra. Winter before last a new TKO 600. This past winter I build a 354 stroker and installed it. Dyno'ed at 323 rwhp & 375 rwtq. Great motor for cruising, 50 mph 1500 rpm and no trailer hitch jerk. 70 mph about 2000. Pulls like a train from 2000 in 5 Th. gear. And over 20 mpg. BUT I'm thinking about changing the cam for more HP and moving the power up a 1000 rpms. I know I should just leave it along but more horses can't be a bad thing.
I've got a little over 20,000 miles and five trips to London, Ohio on my Cobra.
Dwight