Pontiac Repair: misfire, car parts store, spark tester

Question
car started misfiring changed spug plugs but still no power when taking off, also added fule cleaner to gas tank

Answer
Hey Jimmy:

you need to determine if it's a spark issue or a fule issue. buy a spark tester at the car parts store and check each cylinder to which cylinder(s) are not firing if they are all firing then it's a fuel issue or worse an engine mechanical problem. What modle car is this and what engine? let me know and good luck :}