another bump to avoid starting another thread!
I have a 99 3.4l supercharged with URD 7th injector.
Gonna do some maintenance soon, replacing injectors, plugs, etc.
It has a 2.5" pulley, i wanted to go to a slightly smaller pulley, once i get the upgraded fuel pump (i *think* it's the stock pump, i cant hear it).
When all thats all sorted is there any other place in SoCal (hopefully closer to San Diego) that can tune the 7th injector?
I called the Truck Shop, referenced in posts above, they don't do any tuning there.