Fuel Injection Harness Questions? 89 TBI setup

[1972C10]

They wanted 225 dollars but they have other chips cheaper i want that six pack chip you can get a chip for whatever you want im sure jets and hypertechs website had a chip for any kinda 89 w/t combo 305 4 speed 305 5 speed 350 4 speed 5 speed even had v6 stuff.

I have a chip in my 89 w/t 305 but its got a th375 but its not computer controlled so i assume its the same chip as a manual