Lee, Thanks for the reply. I definitely don't get 2nd at 50-55 mph, and don't always get 3rd upon hard throttle, even when the kickdown or whatever switch under the pedal is closed. Also when starting off from a stop, even if I select 2nd I will only get 4000rpms in 1st before the change.
What's a bowden cable? and would an adjustment help the shifting? Is the downshifting controlled by vaccum? and if so might it be possible that I have a leak somewhere?