I have carbon buildup in the combustion chamber. Changed the plugs, wires and used injector cleaner. It stops for awhile but the car misses, hesitates and backfires when it gets hot. What would you recommend to solve this problem.

Optional Information:
1996 Dodge NEON(HIghline) 2016valve(SHOC)

Already Tried:
fuel injector cleaners, blowing it out(open highway), plugs and wires