Putting an NOS wet kit on my 383 and curious what would be the best plugs for it???
Thanks,
Adam

 

i have the NGK TR-6 4177 Plugs..

 

anything non platinum, i would go with NGK TR-6.

 

Some guys are using the Autolite 104's I believe and they love em!
I'm also running the NGK TR6's but there are other options

 

Depends how much NOS are you going to run?How much compression does the engine have?Will the car be drove on the street alot?Are you running a MSD ignition?What plug are you running right now.You may be able to run the plug you are useing right now depending on the factors above.Please give more info. Thanks Mark

 

your gonna most likey need a colder plug than NGK TR-6. Do they make a 7? I think I am running AC R42LTS. I can't remember but I think thats it. It is 2 heat ranges colder than stock. A tr-6 plug is only a half a range colder that a tr-55. There r a lot of factors to use when deciding like an early post stated. Alan

 

another vote for tr6