JOE,

I don't have any information on what the values of the vacuum should be when varying the vacuum valve but it should get lower as the accelerator is depressed.

When I connected my "Y" connector wrong, the transmission was getting full vacuum all the time and that is what caused it to slip or so I was told by the rebuilder. The trans had ~190,ooo miles when it first slipped and went another ~10,000 miles until it got so bad I had to replace it. I connected the "Y" connector wrong in TN and it didn't slip until I got to OR, about 2500 miles later.

Maybe you can attach something to the bottom of the accelerator pedal to contact the kickdown switch or raise the kickdown switch.

P E H