I have an original 68 a/c vert. Yes there are quite a few differences from the a and f bodied cars when it comes to a/c but there is some overlap. If your car did not come from the factory with a/c you would have to be very dedicated to add the factory setup, here is a good thread to check out https://firstgenfirebird.org/forums...tioning-need-help-wisdom.html#Post208025 If you are not concerned about original looks an aftermarket setup would be easier, give more under hood room and work better. If you are trying to restore an original a/c car that was molested in the past It's doable but all I can say is buckle up.