You might want to check your throttle cable adjustments. I had the same problem in my classic. When I would come to a quick stop my car would stall with no hesitation. It would just shut off. My adjustment cables were loose. I hope that works out!
RED 92 CLASSIC
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ROD KNOCK ,NOS,H/S HEADER,MSD,INTAKE,EXHAUST, ACT CLUTCH AND PRESSURE PLATE (IN THE PROCESS OF A PRIMERA MOTOR SWAP AND INSTALLING PR CAI AND SHORT SHIFTER)

RED 92 CLASSIC
-----------------
ROD KNOCK ,NOS,H/S HEADER,MSD,INTAKE,EXHAUST, ACT CLUTCH AND PRESSURE PLATE (IN THE PROCESS OF A PRIMERA MOTOR SWAP AND INSTALLING PR CAI AND SHORT SHIFTER)