what ac port to use to charge ??
 

edit:I figered it out

should there still be freon in the bottle after the system has been filled?
Thanks

There might be some left over. It depends on the size of the cans and what it takes to fill the system. I used to go by the site glass in the receiver dryer. When the air bubbles were gone, it was full. Recently, here or on Rennlist, it was mentioned that wasn't the best way and the poster went on to describe a good way to do it.