FAstest ET with cam and heads and convertor
J.
As others said, that's too much converter for nitrous use. You'll be leaving at least a couple of tenths on the table. It should be a great NA converter but a terrible nitrous converter (I know, I once ran a 125 shot with a 4600 converter.)
I think any popular cam will do you right on the nitrous. I would suggest you go with a tighter lobe separation though. Something like The Futral Motorsports cam I run would work well: 226/226 575 575 114.

