I'm trying to get started on my manual swap soon. vstech....my 81 N/A would have what diff? My 82 turbo should have the 3.07, right? I keep thinking I need to put the 3.07 in the 81 N/A when I install the 4 speed manual if my N/A has the 3.46 or anything higher than a 3.07. Would you agree?