Those pressures sound like an overfilled system, ie too much refrigerant. The ratios aren't too out of whack, but they are both higher than they should be. A restriction in the high side would be pulling the low side a lot lower, but the low side is about double what it should be. My suggestion is to take it to somebody competent and have it recovered, evacuated and recharged with the proper amount of refrigerant.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
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90 300CE 104.980
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