Well since no one has chimed in after 49 views I will put my 2 cents in. You want very little to no overlap with the cams you use, when using nitrous. So I would use the cam combo that give you the least amount of overlap as possible. I would also use cam gears to further reduce the overlap after that. I believe 20ve, 16ve and 16ve N1 cams all have 0 degrees of overlap on the low cam lobes so this means that when you decrease your overlap for the high lobes by using the cam gears you will increase your overlap for the low lobes. In short you can't reduce the high cam lobes overlap with out increasing the low cam lobes overlap. You would have to also play with your RPM activation points aswell. Will require some thought but all great things do. Good luck and if you get a chance post some dyno experiment results.