Just thought I would pass this along. If you considering changing over to a 134A system and want to do it right this is one heck of a deal. I have done the research on the good and bad of the old R12 system components converting and reliability. The cost just got out of site to try and do it with stock equipment.
But if you are not concerned with how things look under the hood and want the reliability then this is the deal. You cannot buy all the pieces separately and beat this price. You get everything you need from the bumper to the firewall. The condenser and evaporator are the new dual flow systems vs the single flow of the originals.


http://www.ebay.com/itm/68-72-Cutlas...dYJKfb&vxp=mtr

 

That's a cool kit for someone that wants to upgrade but keep things looking original. I never liked the POA valve under the hood though. If I were to upgrade I would go with an orifice tube system.