I know this has been asked before, but how big an injector can I go on a all "bolt on" 2000 WS6 Trans Am, can I run my Bosch 36 lbs injectors without any tune? I would be willing to trade them for smaller injectors if I can't use them. Rich

 

To change the injectors you are going to need to be recalibrated so the pcm knows how much fuel you are working with.

 

If you done all the bolt on's you must have has a tune to make the most of of the bits didn't you? if so you could get the same person who done that for you to tune it for 36's.
Really you do need a tune to change injectors.