i havent really heard much about increasing the injector output on that truck. I dont know how much you can do with them. Im leary to try very much tho because, about 2 months after i got the truck the injector driver had back fed fuel through the harness and fried the pcm. Chevy picked up the whole deal I got lucky because I bought the truck with no warrenty. If this is became a problem again after the performance parts id feel like bumping the fuel pressure was enough to cause it. I really need the truck to be able to be my daily driver.

 

that's not an uncommon thing. we've had a few of those here at work and end up replacing them with the new style injectors while we're there.