Can I get a /6 in the 7's?

One thing I will bring up about nitrous, that many don't consider, is cost. Nitrous and turbo, are like the old oil filter commercial. "Pay me now, or pay me later". Nitrous is less expensive then a turbo to build. But there is the ongoing expense of filling the bottle, so keep that in mind. I fill my own bottles, and that saves me money. I have seen prices of any where from $3.00/lb to $5.00/lb. A couple of years ago nitrous was costing me less then $1.00/lb, now it is about $2.00/lb. Depending on the race, I might use as much as 6 ten lb bottles in a weekend. Some meets are Fri night TnT, Sat race, and Sun race. So if I get lucky and make rounds, I need more nitrous. You can only use about 5lbs from a bottle, and remain consistent. That means you need extra bottles (I have 7).
http://slantsix.org/galleries/claycity/2002/nos-charlie.jpg