a few nitrous questions...

1. close

2. I have a 190lph pump, when i had the kit lol. But to be extra safe you could get a 255plh

3. I think you should be fine that what I ran with the kit

4. I would get a nitrous tune as well as your NA tune.

You are getting excited I can tell lol, you can let everyone know I dont care. B/C I almost cant hold it in ethier, so you might as well lol.

The injectors won't be affected by running a wet kit. All of the extra fuel is provided via the fuel/nitrous nozzle.

As for the fuel pump. Since you are already pushing over 300whp, I would recommend you get a SVT Focus fuel pump or any other 255 lph pump.

Going with colder plugs will depend on how big of hp shot you are going to use. 125hp or less I would say you are good with 1 heat range colder than stock.

You will definately not want to use the nitrous with your 93 octane tune. Most likely that tune has advanced the timing by a few degrees over stock. You do not want that when running nitrous. You might be able to get by if you are running a very high octane race type fuel. 100+ octane or so.

+1
Run stock injectors, the nitrous kit will add needed fuel when spraying
A bigger fuel pump is def a good idea, get one.
One heat range colder plug is good for up to about 150, gap the plug around .025"
You need two seperate tunes. Motor tune, and nitrous tune, nitrous needs timing backed off about 2 degrees for every 50 shot past 75 shot, off your baseline timing. Which means if you have a programmer it is advanced past stock so the timing needs to come back. I have a predator and just back the timing all the way down when I spray 125 shot. Not the most accurate but safe since I didn't have a dyno tune.