DIYEFI.org Forum

Hey everyone, I am a mechanic with prior experience working on fuel injected cars but have never built my own system. I have a 75 Cadillac Coupe DeVille with a 500 and a TH-375 transmission. I drive the car everyday and the carrb is tired and and now I'm only getting about 10mpg. Rather than rebuild the carb I'd like to up grade to a TBI set up. A while back I bought a first gen analog projection set up but it didn't have the O2 sensor set up. So everyone has told me it pretty much worthless. However the Throttle body is good for 700 CFM and is a 4 barrel. I was wondering could I tie the two injectors on the left together and the two on the right together so they'd work like one big injector and then use the Gm TBI computer from the ,90s to run it?

Hi and welcome!

I moved this from the FreeEMS General section because it appears that you want to use a GM TBI computer to run your car.

I'm not into OEM hacking so I can't help you, sorry. But perhaps someone else can?

Fred.

Oh sorry about that Fred.

No apologies required! Best of luck in your endeavours.