Does 95 have OBD2 capability? If so, long term fuel trim will tell you if it's a vacuum leak or fuel issue as well.
Don't need OBD-II to verify short- and long-term fuel trim.
1. Connect a fuel pressure gauge, see what the pressure is when you stab the gas pedal.
2. Connect a REAL scan tool, see what's in the data stream, especially when you stab the pedal.
Initial impression is low fuel pressure, or high resistance in the secondary ignition, (I'd like to have a look under the distributor cap!) or a weak ignition coil. But there's other things it could be. Diagnose first, replace parts second.