The 1993 Cobra came with the 65mm T/B, the 1994-1995's got the 60mm. Not that it will matter much for now.
Upgrade to a A9L or A9P Fox body computer. They will do wonders for your car. One thing to note is that those computers are not setup for electric fans. I forget who sells it, but there is a conversion kit out there to use them. That's a big deal, probably 10-20hp for you. It will also make your system much more accepting of a cam swap. Remember, you'll also need to upgrade your MAF, or switch to 19lb injectors should you choose this option. If you'd like to keep those parts and increase performance, get your combo together, and have a chip custom burned. I think a few members on this board KillerCanary and some others are running a better setup that allows them to play with the values to tune the car themselves.
For the cam, you already have 1.7:1 Cobra Roller rockers (nice pieces). Use the B cam with that combo and you'll wind up with a ton more high end power. About .514 lift 224* duration at .500. You could also go with a Crane 2030 (that seems to be the current fad), or an E cam or any other mild cam. Make sure it's a mild cam because you've got rockers that will artificially increase your lift/duration.
The MAF Sensor is a good place to get ready for more power, and I've seen quite a bit good, and bad, on the C&L products. I'd avoid the Pro-M Bullit 75mm MAF since you've got 24lb/hr injectors from the factory and appearently Pro-M is having issues with their 24lb calibration.
The headers are also a good idea on the Cobra.
The T/B will help if you get a cam, and an adjustable fuel pressure regulator would be handy at that point as well.
Good Luck!
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