I'll post a link to the exact location but sometimes such links don't work because you must be logged on. You have to be a registered user. It's free. Get a username and password and when you get to the forums page, you'll see sections each with a red banner on top. Scroll down to the section titled "General Pontiac Tech" in the red banner. The second sub-section down is marked "Pontiac-Street". Click on that and you will see a thread that is titled "Griffin Radiator Group Purchase". Click on that thread and you will join that discussion. Post your response/request the way you would here and the instigator of that thread will respond to you both in the thread and in a pm. You will be added to the list and given more info when we reach 30 participants. Here's a link to the inside of that thread which may or may not work. Let me know:
http://forums.performanceyears.com/forums/showthread.php?t=647750