Which plug is the best to run with n2o? I have heads cam and all boltons with 150 shot of nx. I had ngk tr6 plugs in but was told that the v groove was bad for nitrous. Now i have autolite 103 plugs in it .. I never sprayed the car with either just want to know which plug is best.. I would like to stay 1 heat range colder.

 

NGK TR6, autolite 104 or ac delco r42lts are the more popular plugs.

I never heard before that the NGK tr6 plugs are bad for nitrous.

 

The 103s should be fine.....I belive they are 2 ranges colder than stock , but thats fine. Gap them at .038-.040 and your good to go.

 

the name says it all....


bad for nitrous?...OK

takes a lickin and keeps on kickin

 

I'm running Autolite 103's also. Car runs great.

 

I'm running AC Delco R42LTS. I like them because I have headers and they are short. Makes life a hole lot easier come changing time.

 

I have been running NGK TR-6s since day one of nitrous use. They have worked fine for me with no problems what so ever.