Quote Originally Posted by 34_40 View Post
Since it is an AOD, chat with the guys here, they know the AOD inside and out, front and back, top to bottom. They helped me get to the bottom of problem.

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And the throttle valve pressure - at idle, should only be a pound or two, if yours is making 35, it's way out of range. But, if you're quoting the 35 pounds at idle with the gauge block installed in the throttle linkage, try backing it down to 30 / 32 psi. It may help the shift points but I think the "bucking" is a different issue.

The AOD is a good tranny, like most things once the setup is completed and tuned, it'll work as you expect.
At idle the pressure is at or near zero just as it is supposed to be. Once I get the trans to shift down as it slows down, the bucking will stop. The surging will probably continue because of the cam and intake not liking low RPM. I went for a ride in a friend's Cobra with a Victor Jr intake single plane and it surged like crazy loping along. Thank goodness it had a standard transmission.