im having a problem with my 1-2 shift point...at WOT,it only reaches 20mph and 3400 rpm before shifting...my thoughts are that it should shift at 30mph and at 4500rpm,or the same point all the other gears change....btw my car is an 85 300sd...heres a link to a thread i started yesterday...i figured i would post it here,and see what a tech thought...ALSO,first gear is the only affected gear,all others shift correctly

http://www.peachparts.com/shopforum/showthread.php?threadid=79128