t-5 fluid ?

[chatcher]

im getting ready to fill the t-5 back up and it seems as though i've picked up the wrong fluid i did a forum search and learned it uses atf so back to the parts store i go my ? however is i was searching to get an idea on just how much fluid i should be putting in and now that i find i need atf does anybody have any suggestions also when filling should i fill to the upper plug with the tranny sitting level or should i tilt it and put in a specified ammount sorry but this is the first manual tranny ive worked on (first time i burnt a clutch)