360 HP estimate???

Well, one thing I can tell you is if you get the pressure up to 185 to 195 with a 223 to 230*cam, you will get such a grin on your face it will take all winter to get it off.
The KB 190s are a great start

To run N2O usually requires more ring-gap, and more skirt clearance.Which is kindof the wrong thing to do on the street,especially long-term.
But if you are gonna make it a dedicated track car, then N2O makes sense; sorta.