i have a 06ss/sc that iam wanting to do smaller pulleys too and a smaller gatorback belt do i really need to up my injectors?? even if i do a ecu tune

 

yea u do

 

Yes, from the factory the injectors are maxed out. Depending on what pulley size you go with determines what size injectors you need. How small a pulley you goin for?

EDIT: I'll make it easier....for pulley sizes between 3.1 down to 2.9 you'll need 42# injectors and anything from 2.8 and down, you'll need 60# injectors. Plus, a custom toon done since GM doesn't have tunes for those pulley sizes or the 60's.