so what am i supposed to do go to the drags ? my point in this conversation was regarding the very low nitro fuel percentages allowed for model r/c use , this is why i mentioned drag cars can run 100% even though its 90% wasn,t a bad guess from myself i might add. i am not giving false info unless were talking drag cars which where not are we. so why 25% nitro maximum for r/c use and 90% nitro for race car use ???