TRUCK DEVELOPED A MIS AFTER I CHANGED THE BATTERY AND AIR FILTER.

What is your question?

HAVE ALREADY CHANGED SPARK PLUGS AND WIRES,TOOK OFF MAF AND GENTLY CLEANED,PUT HIGH OCT GAS IN,HAD AUTOZONE PUT COMPUTER ON IT TWICE AND THE RESULTS WERE CYL 1 MISFIRE AND RANDOM MISFIRE THE SECOND TIME THE RESULTS WERE CYL 1 MISFIRE @ 0 TO 1000 RPMS.SEEMS TO MIS THE MOST AFTER SHIFTING GEARS. ANY INSIGHT TO HELP ME FIGURE OUT WHATS GOING ON.