ORIGINAL: brett65
Before you go messing with all the needles, try a new plug. It is possible for the plug to still work, but not efficiently. That is the first thing I change when one of my nitro cars isn't running right. Try that and retune with it. Give her a flight and see how she does then you'll know if its the plug. That is the first thing you should always change when you can't get it to run right.
Has the engine ever been running right? With only 5 tanks and chronic dead sticking it doesn't sound like it.