Rochester P?N 17091129 injeter #'s 8242 and 7699

 

another pic

 

Do you have any clearer pics. Any closeups of the IAC? Something tells me that is not GM. That is not a Holley or GM 305, 350 or 454 unit.

 

numbers and gm cast into it

 

underside

 

gm alright

 

I am stumped. That doesn't look like any TBI that came off of a truck or f-car.

 

cam off a 454 u-hall truck cut off the govener and other junk, smaller injector pods than car and truck ones ( hopefully better flow) and i hope 85pph injectors, there kinda like the ones in a holley.

 

I'm realy hoping some one can ID the injector

 

Its a later model 454 unit since it came off of a 454 truck. Those look like the small delphi units. I dont know what the flow rates are for those offhand but theyll probably be closer to what your sock injectors flow at the stock fuel pressure that your present tbi runs at. With the regulator in that 454 tbi itll dead head your pump so modifying it somehow, using your stock injector pod, or using an aftermarket high pressure fuel pump would be required.

EDIT: saw your above post.

 

I didn't realize how much of a difference there was between the late and early 454 units. The early ones are pretty much identical to ours.

 

think big truck GMC longer than my house truck where the front clip flips forwards. I think it was like a 89 to 93 or something like that. It was bolted on to a adapter on an carb intake.

 

what?

 

IOW its a really big friggin cargo truck.

 

ohh

 

ok found out there 80pph injectors, and to make the fpr ajustable all I had to do was chip off some expoy no drilling.