you could do a 50 shot, no harm done.
if you wanted to go bigger, id suggest some fuel upgrades, cuz youd be running a little lean when on the bottle, i dont think you want to do that.
MikesMazda, one thing, its called a bottle warmer, you can use everything in the bottle pretty much down to the last drop if the pressure is right (i may exaggerate a lil bit there, lol) but it does HELP ALOT and another thing, you had a ZEX kit, pshhhhhh, please dont even call yourself a former nitrous owner.
build the head, forged rods n pistons, 200 shot, awwwwwwwww yeah!!!!!!
thats my goal anyway, one day, one day, 2 stage, 1st stage 100 shot, 2nd stage, another 100 shot, lol, Im doing this for all the nay-sayers.