JB,
I HIGHLY recommend these three Posts/Articles:
http://www.peachparts.com/shopforum/showthread.php?t=158216&highlight=critical
http://peterschmidtransmission.com/
http://www.continentalimports.com/ser_ic20242.html
Further thought:Kickdown switch underneath the Accelerator Pedal might be bad.
And yes it has the K-1 (Along with half the rest of the Alphabet.)
I'm not as "up" on the Transmission as I should be...
If you can interface with STEVEBFL he may be able to assist you further.