[hawk362]

Def. copper don't think twice about the plugs, you said you have plans for 75-150, you are definitely going to need to upgrade to a twin turbo fuel pump. Window switch will be needed as well, glad to hear you invested in the wet kit. Since you do plan on using much bigger shots in the long run, invest in a SAFC and proper tune, with your EGT gauge you'll be set. If you plan on upgrading higher than a 100 shot, definitely save up some money and get a direct port wet system. That amount of nitrous, you really want to make sure you have an even distribution, also I know the 2.5lbs seems small and conservative, but I'd highly reccommend a 10lb bottle, after 1-2 runs with your tiny bottle the pressure must drop pretty low, considering your not even running a bottle warmer either. So to sum it up

1.Copper Spark Plugs, no substitute or easy way out of this, now that you have 75 shot
2.190lph fuel pump- bought mine used on 3si for $40
3.SAFC will be a must for your future plans
4. Bottle Warmer/Bigger Bottle- You wont be getting the right amount of power if your bottle pressure is low ideally you should be at 850-950psi, Nitrous gauge can help monitor this not a expensive investment either knock off brands go for $20-40 on ebay.
5.Window Switch is a must, this will allow for traction, set the nitrous for when you want to engage and cut off, my car I have it set to 3600rpms-6600rpms.
6. Anything over a 100 wet shot, you may need to consider direct port setup, and or forged pistons depending on how your going to go with the shots.