Supposedly from what ive heard,
the 93 cobra came with 24 pound injectors yes indeed (I saw that on an SVT site)
But the SVT sight doesnt go into detail with the entire MAF system, and what a couple people have said, is that the meter is actually calibrated for 19 pound injectors, and it is relying on the computer to "recalibrate it" so to speak.

However, I don't have a 93 cobra computer, so the meter is just sitting there waiting on instructions that will never be coming.

Thats of course, info from our fine technical support team here at the ford forum

So I have since returned the cobra sensor and will be heading out this afternoon to purchase one from Carquest
So wish me luck, and ill give an update if i get my meter by today.