I had a similar problem in which my car would learch forward and then pause (as if someone where hitting the brakes) and then learch again etc.
Get a Haynes manual and follow the instructionis for trouble shooting the fuel pump (they're pretty good). The main thing you'll need to do is get a fuel pressure guage (not too expensive) and hook it up to the fuel line (you may have to remove the air intake tube from the TB to do this..replace it once the guage is hooked up). Start the car. At idle the pressure should be around 27.5 psi (it gives a range in the book). Mine was about 19#! Anyway there is other stuff like removing the vaccumme from the fuel pressure regulator (kind of tough with the intake on) and see if the range is correct.
Anyway, I found out that the filter screen had fallen off my pump and into the gas take. Thus the pump and filter were fouled. I replaced both and everythings back to normal.
