ok, I've read through a lot of the thread. Probably should have stopped before I got confused but oh well. I have found my vacuum diagram http://peterschmidtransmission.com/images/617_9 but I am unsure of were to start so tell me if I have the steps right.
1. test for Vac leaks.
2. test for 15-10 in pressure at idle on backside of orifice and 0 in at full throttle.
3. I am clueless at this point and need help.
My tranny only shifts hard between 1st and 2nd. Do you think just changing the orifice size will fix the problem or will I have to go deeper? If so what would be the logical first step?