My 91 STILL DIES!

Thanks for earlier response. Still same problem .Engine quits when parking or turning steering wheel left or right all the way.engine starts to miss and shake then quits. will start right back up. Changed IAC as sugested, car has more power now. but same problem still there. have checked and replaced, vacum hoses,new cap rotor,plugs and wires.Car runs great other than this frustrating problem. Hope someone can help. Thanks.:confused: P.s. My s10 Blazer has a 4.3 litre engine.