miss/hesitation

[Inspector J.Liles]

WHATS UP EVERYBODY? I HAVE A 1992 PASEO 5 SPEED. JUST BOUGHT IT ABOUT 2 MONTHS AGO. IT HAS 229,XXX MILES ON IT, AND STILL SEEMS LIKE THE ENGINE HAS A LOT OF LIFE LEFT IN IT. ANYWAY, I CHANGED THE PLUGS, WIRES, CAP, ROTOR, FUEL FILTER, PCV VALVE AND PUT A SHORT RAM AIR INTAKE ON IT. RUNS GREAT, BUT DEFINATLY HAS A MISS WITH THE A/C ON. NOT SO NOTICEABLE WITH A/C OFF, BUT I CAN TELL IT'S THERE. NOW WHEN I DRIVE IT FOR A FEW HOURS DURING THE DAY, IT STARTS TO MISS SOMETHING HORRIBLE. STARTS JUMPING LIKE A PERSON DRIVING A STANDARD FOR THE FIRST TIME. I PULLED OVER AND LET IT COOL FOR 10 MINUTES AND IT WAS OK AFTER THAT. STILL MISSES, BUT NOT LIKE IT DID. MY THOUGHTS ARE ONE OR A COMBINATION OF : COIL GETTING HOT AND LOSING SPARK STRENGTH, CAT GETTING HOT AND CLOGGED UP, SENSOR ALTHOUGH NO LIGHTS ARE ON, DISTRIBUTOR GETTING HOT AND LOSING SPARK STRENGTH. ANY COMMENTS OR SUGGESTIONS ARE MORE THAN WELCOME. THANK YOU FOR TAKING THE TIME TO LOOK.