I have heard of upgrading the stock 3.4L injectors to the 3.8L ones and gaining some power. Is this true or will it just overfuel the vehicle?

 

I can not imagine changing just the injectors would effect much at all. Injectors can be limiting factors as you mod you motor. Say your injectors are only good till 220 HP, at that point injectors would help you. But let say you put the biggest injector in bosch makes. Your o2 sensor would just pick up on the added fuel and just cut back the pulse width to the injector until it sprayed the same amount of fuel your old injector sprayed.

 

thanks for clearing that up