A/C question

I checked the archives but did not see the needed info.....Yes my z is a FrankyZvette but a Z no less. I just replaced the A/C compressor, it is a Sanden 508 type unit/very generic, my question is , the shop that did the recharging only put 1.5 lb of the proper freon, the evacuated the system and because there are no specs on the unit they only fill to 1.5 lb , it works but the old noisy unit felt a lot colder, any ideas to make it ice cold :disappoin

Edited August 17, 201212 yr by 72 OJ