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I run Autolite AR764 the work great!!

But this thread is graveyard bound I think.
 
Ok just curious, picked up a set of NGk 6's today /per application at the parts store and had remembered reading some used the brp7es<I think that's the #
 
I run the 7s but I am also running around 25psi, but for a stock setup the 6s are just fine. If you would have searched you would have seen a nice break down of the ngks 6-9 I think and the boost where you should take a step colder.
 
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