Engine cooling fan

Thanks Roy. The reason I am asking is I cannot seem to get my A/C colder than 50 degrees on a day that is 85 degrees. I have evacuated the system, cleaned an inline refrigerant filter, changed the orifice tube and vacuumed the system for four hours and held the vacuum for one hour before proceeding to add refrigerant. I loaded the system with five 12 ounce cans of refrigerant which is 60 ounce's a little more than you answered a previous question of 57.3 oz's. The reason I evacuated the system is that before the evacuation I could not get the temperature below 65 on an 85 degree day. In the mornings when it is cooler it will drop the vent temperature to 45 or so. I had a little improvement and I was hoping changing the five blade fan to a seven blade fan and replacing the clutch fan would help with cooling a little better. I also already cleaned the condenser and radiator with a cleaner hoping to improve air flow and straighten any bent fins. This is a system that was converted four years ago and was working fine. I just cannot seem the figure out what the problem is. Oh, and it seems that the A/C clutch does not disengage on either regular or max setting.

Sorry Roy, it is taking so long to get back to you. I am on a golf trip. When I get back I will try the water on condenser suggestion and get you the pressure readings.

The filter I am talking about is an add on filter that I added when my system went out prior because all the descendant left the dryer and went all through the system. I had to flush the entire system so to ensure I got all the small particles I added an inline filter made for a different model of Ford. All it is is a three inch long by inch and a half aluminum cylinder with a screen in the middle and compression fittings for attaching it inline. Your help is greatly appreciated and that is no BS.

Okay Roy, here we go I have a lot of information for you including a few pictures.

Outside temperature 80 degrees low humidity.
Static pressure hoses connected valves closed engine not running HS = 88 LS = 88.
Engine running about 1,000 rpm's (guessing) LS = 40 HS = 165 Vent temperature fan on high speed using max air Front = 53 Rear = 69.
Running and misting with water max air front = 54 no reading for rear air.
Engine off valves on gauges open LS = 88 HS = 85.
Took for test ride and then retested pressures while idling LS = 55 HS = 275 misted with water while idling LS = 53 HS dropped to 200.
Static pressure after running engine for tests LS = 110 HS = 110.

Used a infrared temperature thermometer and got these readings from various parts of the A/C:
Dryer = 77 degrees, filter I added on = 113 and high side connection tank 153. You can see the high side tank I am talking about in one of the pictures.
I hope this information helps.
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Running and sprayed with water hose on condenser max air Front = 54 no reading for rear air.

Took for test ride and then retested pressures while idling LS = 55 HS = 275 sprayed with water while idling LS = 53 HS dropped to 200.

Forgot to mention that during the test ride the vent temperature was able to drop to 45 degrees at 60 mph.

Do you think there is a possibility that there may be some sort of blockage in the rear air since its only going down to 69 degrees?

Well Roy, I think I have depleted my will to solve this problem and it is time I take it to someone who actually knows about A/C in auto's. Your help has been invaluable it is just I am not smart enough to carry on. I have not the means to evacuate the refrigerant except into the atmosphere which I know is illegal, so I think it is time to seek a local technician. Thank you so much for your help and quick responses.