Hi, my name is sunny. Great forum you guys have. So I am trying to fuel inject my 350 84 blazer. Everything is hooked up, computer is out of a 87 pickup. Found out that injectors were bad, so I picked up some injectors at the junkyard. The truck will kinda run for about 2 sec. , but I have to have the gas pedal to the floor. I should mention that the injectors I picked up are for a 5.0L. Would this cause my problem?

 

What is the vehicle that the 1987 puter came out of? What is the ECM # and what is the eprom code(four letters)?

you can compensate for the smaller injector by raising fuel pressure and modifying .bin for the CID inj size and fuel pressure. Or just bump FP and see how it runs.