80 problems

[keith arthur <arthur_k@hornet.lynchburg.edu>]

I was on a three hour drive yesterday all on the highway driving my 1989
audi 80 about 75 miles an hour.  I was on a up hill and the engine
seemed to cut off the power for a less than a second the came back to
normal.  As the trip went on i started to do it more and more. When it
happened the rpms would drop back a little bit then return to normal. 
The car drove like normal when accelerating until it got to 50 miles per
hour then would start to miss a little.  everything looked fine under
the hood the the engine temp was normal.  I need help.  it has a 3 speed
auto tranmission. thanks keith