I like the Nitrous Supply Nozzles.
The annular nozzles tend to atomize the fuel more efficiently....so, if you can, I would go that rout. Then you can go with the Edelbrock E3 nozzle or the new Nitrous Supply nozzle P/N 23700rThe manifold this is going on hasn't been drilled yet, so I could go either way. I've only used annular once in the past and had good results, but I had to send the manifold out to get the bungs put on it.