I'm planning on using two 15 lbs. bottles, one to feed a 150HP shot system for around 4 seconds and the other for the bigger 300 to 400 HP kit for 2 to 4 seconds depending on how much I need to compete and win: luck:
I don't know how long it will take to use enough NOS out of the large kit bottle to replace it I'll probably take the scale to the races and measure them to find out
I have a lot to learn