One other thing to think of when talking about GM might possibly, maybe sometime in the near future release a V8, is the price. I would bet if they do release a V8 (and I have no personal knowledge that they will or will not
), it will be an option, and might not be that cheap.
I have no problems with the 3.5L, and a boost of about 25-30 would, in my opinion, make it just a hair better.