nitrous ring gapping

The .008/1" of bore is good. .032 is not enough that you will notice a drop in performance, especially only being the top ring. If you are "on the edge of detonation" you may want to install a progressive retard, or just drop the usual 2* for every 100hp shot, and figure to use the bottle when you need the power. And, make sure your dedicated fuel system's regulator is set with the solenoid open and flowing (like into a bucket), otherwise there will be a large drop in pressure when it's activated.