Reply to "AC Converson"

You've got most of what you need. Somewhere in the system you bought should be the proper fill fitting for R-134a. And some shops remove the tiny screen filter from the expansion valve leg (under the dash) for more freon flow, and an improvement well worth doing is a pair of manual heater hose shut-off valves for the heater hoses. You need two 1/4-turn brass ball-valves from your local hardware store, and a couple of short nipples in each end to insert into your existing heater hoses. Position the shut-off valves where you can easily reach them from outside. FYI, these valves are required for safety when running open track events, anyway. The heater core is fastened back-to-back with the AC evaporator so air flows through both cores, and the in-dash controls cannot be adjusted to totally shut off a trickle of hot water through the heater core. Thus without manual heater shut-off valves, the AC must fight the heat put into the cabin from the heater core before you get any AC cooling.