Well, there is no Sullivan intake for B heads (96-98) Cobras, but there may be sometime in the future. There is a Sulivan for 99/01 and 03/04 heads but you will be hard pressed to find anyone that has one installed on a street car as most think it kills too much low end power.
I have a Sullivan and should be able to give you some dyno numbers in the next few weeks. I know what it is capable of and that is why I chose it over the other intake options. My engine combination is in my Sig.
I see that you have 3.73 gears and only 9 to 1 compression. Are you planning to go FI? If the answer is no, you need a lot more gear before you changing the intake.