Help! 92 Olds Cutlass Supreme 3.1

Hello everyone! I have been working on this car and just cant seewm to pinpoint the problem. Has problem at take off round 1000 to 1300 rpm where it jumps and jerks. Have replaced fuel pump, plugs, EGR valve, plenum chamber gaskets, map sensor, TPS and idle air valve. Ckecked for vacuum leaks and cant seem to find any. Any help with this would be greatly appreciated. Thanks

Welcome to AF, without a road test to feel the symptoms. " jumps and jerks" can be tough to define. Cold, hot, under load, this is the only time it occurs, is it engine or trans related?

Its hard to say on hot or cold because its done it on both. Seems to me that it is engine related.