any 1966 A/C experts out there? I have replace all major engine compartment parts: I.E Rec/Dryer,condenser,compressor (3)by the way, expansion valve,muffler, hoses,water cut off valve,vacuum switch (on heater box) POA valve(came with a POA & not the Suction throttling valve> STV about $1300 if you can find one) & still can't seem to get the A/C to blow cold...(no condensation drip either)..........any educated ideas?.........thanks in advance folks.....