I´ve got an idea.. :-) I want to go from TBI to TPI, but i don´t want to change the wiring harness. If i change the stock intake manifold to a speed density TPI intake manifold and i go from 2 100´injectors (80´@19 PSI) to 8 25´injectors. Does it work ? Are there direct fit systems on the market ?

 

I dont think you can do that. The math and division/multiplication work. But the ecm fires the injectors different. You may have to remove certain parts of the harness and add in TPI parts etc....and to do all the work, you might as well change the whole harness. That's my

 

There are posts and i think a sticky about this