AC proper cooling Temp

Dodge is famous for broken dampers - check them.. Heater Treater makes the fix - mine are in the garage waiting for someone to install them. I'm still plugging the hot water in the summer until they are put in. The new autos have CCOT and they cycle the compressor to keep from freezing the evap so we feel the temp cycles. Most of old cars with factory AC kept the compressors running but they used EPRs so they could run just above the freeze point indefinitely. Hence, meat locker temp. The old add- on ACs used a tstat in the discharge to keep the evap thawed. Some of them would actually build up heavy frost on the evap before cycling the compressor. I insulated the cold line, from the orifice tube to the firewall and insulated the accumulator and charged by superheat and subcooling. The oem charge was a few ounces too much. I weighed the charge and I hit zero SH and the lowest possible evap temp 3 oz. before the recommended charge. I seldom have to run mine blower above 2, even where I live. Craig