Hey Friends, I am smoking 4, 8 lb butts for a family reunion and am doing it at my son's home so I do not have my normal smoker. I will be using a make-shift, converted 250 gal oil tank to cook. I have never done it this way so I need some wisdom, also about how long to cook at 200-250 degrees. How much charcoal should I start with? And, any more tips that would be beneficial. Thank you. T.A. Powell (tbaby).