I HAVE A 93 BRONCO 5.0 EFI. STARTS AND RUNS GREAT WHEN YOU FIRST START IT. HAS PLENTY OF POWER, BUT AFTER WARMING UP BEGINS TO MISS. AFTER GETTING TO OPERATING TEMP IT GETS SO BAD I CANT USE OVERDRIVE ANYMORE. SHUTTERS SO BAD FEELS LIKE THE CONVERTER IS GOING OUT. HAS ANYONE HAD THIS PROBLEM BEFORE. MY GUESS IS COIL, DIST. WIRES OR MODULE. THANKS IN ADVANCE FOR ALL THE REPLYS.