AC Lowside and Highside locations & charge pressure?

[David.Ullrich at ferguson.com]

A while back I took the ASE test so I could buy my own freon to charge the AC in my Chevy Impala SS. Well, my Coupe GT is now due for a recharge. Can anyone tell me where to find the lowside inlet and the highside output? I've got a full set of gauges to monitor the high side pressure as well as the low side (as well as a top tap to the small cans of freon) I just don't know where to find the fittings. If it makes any difference, we're talking about a 1987.5 Coupe GT with the 2.3 NG engine. Also, anyone know what the pressures should be when properly charged? Any BTDT?

TIA!

Dave

1987.5 Audi Coupe GT "Special Build" 2.3 - Anthracite Black
1998 VW Passat GLS 1.8T - For Sale CHEAP