NACvicSi

Well my swap is wrapping up and I have decided that I will more than likely go nitrous since it's a daily driver/weekend warrior. The car is a 91 Civic HB SI. My setup includes:

97 Y8 bored .020 over
JE 10.5:1 C/R pistons
Eagle H beam rods
Short ram intake ( soon to be full cold air)
DC 4-2-1 header

I will soon be converting to OBD1 with a chipped P28 running crome.

Ok so here are the questions:

1) I have a extra Y8 manifold that is off the car. Should I go ahead and buy and setup the Y8 manifold with direct port nitrous since it's off the car, or will a simple wet kit work just as well.

2) I am still running stock sleeves, how much nitrous can the stock sleeves handle safely (assuming I have a decent tune)

3) Have you guys found it cheaper to piece your own kit together or just buy a pre made kit?

4) If I find a good deal on a wet kit and go ahead and install it to run a small shot, how hard will it be later on to convert this setup to direct port?

Thanks Doug