Hi all.. OK just looking for some input. Last time my engine was out, about a year ago, I had a new seal installed in the York AC compressor. I watched the guy do it The shop is a huge rebuilder of all types of AC compressors. I was able to watch the guy do the work which was actually easy and very straight forward. System was filled with R-12 as I have a lot of of it and will stay with it. System has lost all the charge however. I suspect that it is the dryer as I discovered a leak around the low pressure switch (?) attached to the dryer assy. The dryer to the BBi, from what I can find out, is unique to the car because of the pressure switch assy. and the way it attaches to the dryer, plus the way the hose fittings are oriented for clearance. So, I would like to install a new dryer. Which is NLA from Ferrari. I have found "replacements" on line but they do not look like the original so they're a no go. I believe Classic Air in Tampa can rebuild the dryer as they did on a classic Buick I own. But the question in my mind is what about the pressure switch? As an aside, my '79 308 holds pressure and has for a looooong time and the air works very well...even here in Flori duh. So, has any body out there in BB/BBi land dealt with this issue before? Any ideas/suggestions/input would be welcome.