We would like to thank Jack Chisenhall of Vintage Air for his invaluable assistance with the making of this story. For a more detailed look at hot rod air conditioning function and installation, pick up a copy of "How To Air Condition Your Car" by Jack Chisenhall and Timothy Remus.
Proper A/C Prep ChecklistInsulation: Do a good job and the cool air stays in, the hot air stays out.
Engine Fan Size/Location: Use the biggest fan you can; it will keep the motor running cooler and the condenser working as efficiently as possible.
Cooling System: An oversized aftermarket radiator, high-flow water pump, and fresh coolant make a big difference in how well your A/C system works.
Muffler Heat Shields: Heat always travels upward. Mufflers are underneath your floor. 'Nuff said.
Tinted Windows: They don't just look cool, they keep the sun out and keep you cool too.
Double Panel Floors: If possible, a double panel floor will keep most of the drivetrain heat out of the car and allow your A/C system to work more efficiently.
Window Seals: Since the A/C circulates cabin air through the system, you want to keep out as much hot outside air as possible. Plus, noisy window seals are annoying.