Joe, Excellent choice putting the ZL-1 engine in your Chevelle. When I purchased my Chevelle I also wanted to upgrade the engine. Back in 1988, my local Chevy Dealer gave me only two choices. A LS-6 or a LS-7. I chose the LS-6 because it was more streetable. Enjoy your Chevelle, it's looks great and must be fast as hell.
