PONTIAC SLP

iTrader: (3)

hi , my cousin said these plugs (Autolite 3932) http://www.summitracing.com/parts/FRM-AR3932/ is perfect for 250HP and works as well with that big shoot , I told him these plugs are best than autolite NGK BR7EF http://www.harrisspeedworks.com/prod...&cat=64&page=1 , what do u think guys ? because I am puzzled between those two

robsquikz28

iTrader: (246)

id rather go with br8ef over both of those possibly even a 9 depending on the rest of your setup personally

Nick@HSW

iTrader: (4)

http://www.harrisspeedworks.com/prod...&cat=64&page=1

Take a look at those instead. The autolites you posted are a projected tip and a gasket seat...not a good plug for what you're looking to do. If you want to stay with autolite, take a look at AR474 for a non-projected tip plug.

ShiznityZ28

iTrader: (11)

The NGk is what you want to use when getting the tune sorted out. the autolight is a harder metal who's melting point is higher. when you nip one you will be changing pistons. a ngk you can nip and have a shot at not hurting the motor.

PONTIAC SLP

iTrader: (3)

thanks guys , i have last question , i tuned my car with TR6 plugs can i change them without retuning ?

Chris@NitroDaves

You can change them without having to retune

-Chris

Chris@NitroDaves

what he said

PONTIAC SLP

iTrader: (3)

hey Nick what Non-Projected Tip means ? i'll install NGK BR7EF Spark Plugs , do i should gap them ?

Nick@HSW

iTrader: (4)

Non-projected tip means that the firing tip is recessed into the shell to help shield it. Yes you can regap them if you need to. Make sure you do it with a nice gapping tool for a consistent gap.

Nick

PONTIAC SLP

iTrader: (3)

I undrestood thank u much

Nick@HSW

iTrader: (4)

Anytime!

Nick