Which plugs to run??

[11secGN]

Which plugs should I run in my stage motor?? Ta heads, drivin on the street alot. Thanks

P.S. what gap?

 

[mhogan6]

NGK
R5671A-7 .035" gap for the street.
R5671A-8 or -9 for high boost .032" gap.
This is what a Guru told me.
HTH


Mike