As newbie to the turbo buick scene, I went with Eric's 60 lb'ers and matching chip combo and couldn't be happier. I considered the 42.5 lb injectors but went ahead and went with the 60's to avoid any addtional need for more latter injector (at the advice of many memebers here)....car cranks right up and idles smooooooth.
Don't forget the alky!