hey i am currently in the process of changing out the head gaskets on my 2005 grand prix GTP. Autozone and Advance auto have the felpro kit HS9089pt-3. It is around half the price on amazon.com but they are currently out. They have HS9089pt1 and HS9089pt2 that is supposed to fit according to amazon.com. I was wondering if anybody knew the difference between these kits?

Thanks for the help

Scott