i have put a tpi out of a 87 roc in my 91 bird, andi replaced everything, including the computer.

if i wanted to convert it to speed density at some point what would i need to get, just a wiring harness and have a chip burned for my 91 computer, my car was tbi before, but i hsould be able to just get a chip right ?

also is my airbag still functional with the 87 computer ? or is that not even connected to that?

with teh speed density i can do away with the maf, and egr right ?