Quote Originally Posted by 34_40 View Post
Sounds to me like the modulator is leaking.
And reviewing the schematics Denny posted, I don't see a tranny connection and I was already wondering if that trans used a "kickdown" or a throttle valve in the trans.?.?.?
I agree. It really shouldn't matter how many things you hook to a vacuum source as long as none are leaking. What you've described points to a bad vacuum modulator. Just my $0.02.