AR3932 "X" Plugs

Are these any good for nitrous?

http://cgi.ebay.com/ebaymotors/Autolite-AR3932X-X-Racing-Spark-Plug-Set-8-14mm-/170492747113?pt=Motors_Car_Truck_Parts_Accessories&hash=item27b228dd69

Looking for some plugs to run when I spray with my ZEX Dominator 100-300hp perimeter plate.

for one i believe you are going to have a hard time reading the timing mark on that plug ....... and i have honestly never seen anyone use that kind of plug in a drag racing application

but besides that what is you detailed build so we can make sure these would be in the correct heat range

The regular autolite racing plugs work fine.

I wouldn't waste the $$$ on the fancy stuff.

and Like Bruno has said, How do you read them???

what is you detailed build so we can make sure these would be in the correct heat range

Details of build: (in progress)
66 Fairlane GT
OEM block, 547 cu in, forged crank, rods, pistons.
Canton main cap girdle
P51 heads "out of the box"
10.2 CR
98 octane pump gas
H429 victor style inlet
1150 Dominator
Aeromotive A1000 pump w/13204 reg and 16306 controller
Custom solid flat tappet cam- 264*/274* @ .050" .653"/.648" lift 110*LSA
Crane HI-6 TR (timing retard)
MSD 8580 dizzy
ZEX traction control RPM switch
2" primary 31" long 4 into 1's w/3.5" collector
C6 rev man w/brake (no stall converter yet)
9" w/3.5:1 gearing
Motor has not been assembled yet, so no timing or jetting info.


I have a set of 82003 ZEX spark plugs, these are apparently only good for N/A according to their site, although I see them advertised as nitrous plugs elsewhere.
I only plan to spray the minimum (100hp) to begin with as I'm a newbie to nitrous and I don't want to dive straight in and risk damage. Will probably use the RPM switch to bring it on in 2nd gear to stop spin.
After I get used to the spray I'll up the HP. The ZEX kit will go to 300HP. Might have to mix in a bit of race fuel when I use more spray.

The x plug is primarly used in NA applications with tight quench and high compression some stock cars have used them localy with good results, for the first time NOS user i would suggest some NGK 9s with a 100-150 shot. these plugs are more forgiving on stupid mistakes. The Autolights will last longer and are a better plug in my oppion(not the X Versions) but whenever i am doing a new tune up NGKS are in the motor

studly wrote:The x plug is primarly used in NA applications with tight quench and high compression some stock cars have used them localy with good results, for the first time NOS user i would suggest some NGK 9s with a 100-150 shot. these plugs are more forgiving on stupid mistakes. The Autolights will last longer and are a better plug in my oppion(not the X Versions) but whenever i am doing a new tune up NGKS are in the motor

x2