thanks for the help guys, im going to mix up mini batches first in my fuel bottle since it is conveniently measured out in CC's, i think i will start with 10% castor oil and then if it isnt running too hot i will drop it a percent or two, and yes i will try my best to limit nitro and methanol exposure to air, i already thought of this, so when i open it up, i will be very quick, also i will not mix fuels when it is very humid, methanol will soak up water like no tomorrow
and for wh oever wanted to kno where to find nitromethane and methanol, check local motorcycle shops and oil companies (i got mine from a place called hamilton oil co.)
also, a fwe drops of food coloring (water based from what i know) shouldnt hurt anything should it, i want my fuel to be blue so i can see it in the tank
and about the castor oil, i did not know that VP Racing made castor oil, maybe next time i will try that out, right now i am using Klotz Benol which should suffice at the moment
thanks again
Sean