Folks,
I just finished getting keys made for my ZR-1 and Firebird. Thught I would share. I got the key blanks from an ebay seller. They were $9.89 apiece plus $3.00 shipping. Walmart cut the keys for free. They said they charge for the key not the cut. Total for the two VATS keys was $24.43 (insurance included) shipped. I got them in two days from Chatsworth, CA. So I ended up getting both the VATS keys for less than the dealer wanted for just one, which was $27.00. I now have spare ignition keys for both vehicles. WHEW.
This seller has instructions on each auction (he also has a website) on how to figure the key needed. You just have to know how (or know someone who does) to use a multimeter to measure the resistance of the keys.
http://cgi.ebay.com/ebaymotors/1986-...1774QQtcZphoto