#4 cylinder is misfiring on 96' pontiac firebird how do I fix it or where can I go to get fixed ?

You'll need to figure out if it s spark or fuel. Do you have the 350 in it ? If so did the water pump leak . This can take out the dist causing a miss fire. You'll have to find a place that you can trust to find out whats going on. You know it # 4 cyl so that makes it a little easier Pull the plug wire off a test for spark if you have spark there pull the plug. Does it look good Most auto parts stores have a chat to show you what a good or bad plug looks like. Also check the plug for wetness This will tell you if the injector is firing . If no trouble is find you'll have to go to the repair shop and have the injector tested for power and ground to it and if its flowing fuel or not