93 gmc 5.7 idles poorly and stalls under load

[jorgeq2]

I'm having a similiar problem with my 93 gmc sierra 5.7 ! it stalls when letting off the the clutch! it idles poorly also! I changed the fuel filter,wires,cap,rotor,I removed the full pump and that checked out fine!NOW I have the distributer out & all apart as requested from my friends at gm dealership,to look for cracks on the underside of the pickup on the shaft that seems OK to! NOW they think it might be injectors & regutator ? at $144 per injector & $75 for regulator "NOT GONNA HAPPEN"!!!! because if that dont fix it i'm afraid their going to tell me it needs a COMPUTER !!! this happened once before but fixed it self!!! definetly seems electrical/ignition to me!!the well trained techs are baffled too!! any suggestions?