Originally posted by gonzoY5
How about like running characteristics? Overheating, bad Idle, Low Run time. The plug tips only work with a new plug.
Those are a combination of factors, weather, carb, nitro, pipe, gearing, compression etc.
There is a a correct plug (check the table) for an engine which starts with correct shimming (compression) for the nitro you use.
Then weather conditions determine if you use cold or hot body.
And fine tuning depends on what you are looking high end or low end. Then you have to carburate accordingly. Of course if you have hot weather, and or hot and dry, and or hot and humid, or viceversa, and you have improper plug , engine will overheat, running time will decrease, idle becomes erratic, etc. Tips work the same with a good used plug. A faulty plug will show immediately, with car not wanting to start or dying out of nowhere or backfiring.
AFM