There is a sticky at the top of the home forum page that explains the differences with the cobras. I just wanted to let you know in case you didn't see it. As far as power goes, most 94-95 Cobras I've heard of or seen on this forum put out around 220 rwhp stock (which is around 260 bhp, considering 15% drivetrain loss.) This means the Cobras were underrated from Ford by about 20 horsepower. I believe 93 Cobras might have like 5 rwhp less, but they also weigh less than the 94-95 Cobras. They are about the same as far as 1/4 mile times stock. They pretty much have the exact same engine, besides a different TB in the 93 (65mm), and very slightly underdriven pullies and engine oil cooler in the 94-95. It pretty much comes down to which look you prefer. Just advancing the timing on these cars or getting a dyno tune makes a big difference in perfomance. Mine put down 255 rwhp and 299 tq with the boltons in my sig with a dynotune.