Couple of questions for the experts
 

Is there any way to tell if a injector is a 7mm or 9mm with out pulling the injector?

Would it be possible to have non IC inectors in a 91.5 IC truck from the factory?

I am just curious because my 91.5 IC (build date June 1991) has the non IC electrical wiring according to the pics in the sticky.

I have heard that the 9mm injectors flow more than the 7's. So if it possibly had the 9mm in it then I could get some good power out of it, right?

Just let me know what ya'll think about this.
Thanks
AndyT

injectors
 

if memory serves me right ic=7mm no ic= 9mm its one or the other

if im rong better guys will shime in

You have 7mm injectors if it is intercooled.

Thanks guys. I was just curious since it has the non IC wiring. Thought maybe I had a rare bird.

Thanks
AndyT

The 91s are a different breed. Not quite the 100% mechanical of the 89-90s, but not near the electrical stuff of the 92-93s. I forget if my IC 91 had the wiring of the older style, but my 90 and 91 looked identical under the hood.

Daniel