nitrous problem
 

Okay i finnaly got my NOS sportsman fogger going i have a holley blue dedicated for just the system when i called nos they said a 26 nos jet and 28 fuel and when i looked on there website there was 22 26 was the jets they gave well i used the ones they gave me and took it out the car pulled harder but not as hard as it should i pulled the plugs and they were white so i figured it to be lean so i used the next set of jets that i had and jeted up the fuel side to 32 ran it again pulled like an animal took the plugs out they were white same as with the other jet and the whole time the fuel pressure was at six and half almost seven the timing is retarted i have colder plugs in it good gas i dont see any detanation on the plugs but they were white not even a little tan white like they are brand new could this be because my carberator might be to lean i cant seem to figure it out any advice or suggestions would be greatly apriciated.

undercarb'd maybe? how big of a shot are you putting through it?
are you sure you got the jetting right on the second try?

How do the plugs look off of the juice? It sounds like you need to jet it up a bit. You're not undercarbed, if your carb was too small it would be constantly rich, not lean, bigger carbs flow more air, not fuel. Other than that everything else is sound.

i am not sure what shot im am running because i stepped the fuel up a couple of jets but i was trying for 150 and when i run on motor my plugs are tanish and my egts are around 1450 and now there at 1200 when i spray it

If your EGT is down around 1200 and you haven't melted any plugs than I think you'd be fine. I think you've got a pretty safe tune.

even thow my plugs are white

I would try running a colder plug at the same tune it is now. If the plug has to high of a heat range the will stay white.

My guess would be that you may have a fuel volume problem. Jetting it up on the N/A side would compensate, but it may boil down to the size of the lines you have feeding the fuel solenoid. I would also spend $6.00 on a Moroso spring for the Holley Blue that steps up the pressure and volume the pump can deliver. Moroso part number: 65770...and then set your pressure on the N2O side to 6 pounds, and set the Hobbs switch at about 4.5 pounds. Just keep in mind the weight of the fuel, and what that fuel wants to do when you launch...it wants to go back where it came from.
Have you looked the plugs under a magnifier? and which plugs are you looking at?

Ron