Computer tuning?
 

I have a question for everyone about the computer in my 90 mustang. what modifications should be done to my computer after i get my 24 lbs inj., .030 over in the cylinders, holley systemax 2 kit (heads, cam and Intake manifold).

What about a gear and MAF meter?

wait until after the H/C/I is in, a simple tune might fix it, or a custom chip might be needed. Did you already get the como? If not I highly recommend you don't. I've heard of so many problems with the heads, and lack of power the combo makes. My $.02.