bastereo, I watched this page, the Performance Years page, which is down right now, Classical Pontiac,the Pro Touring page and Ebay. You just have to decide on what you want and in my case, start to save money. I had to really stay focused because I had an opportunity to buy a 400 long block a week or so ago. If I had I wouldn't have had the $$ for the rear. I knew what I wanted and knew one would come up sooner or later. It did and it was local. Just be patient.