Which Spark Plugs To Run
:confused RUNNING A DELTA CHIP AND 6# PULLEY WHICH SPARK PLUG SHOULD I RUN IN MY 03 SVT LIGHTNING PICKUP.IT STILL HAS FACTORY PLUGS IN IT NEED YOUR ADVISE THANKS/TOM
Personally I prefer the NGK-TR6's. They are a buck 39 a piece and I have not had any problem with them. I have a 6# lower, and a 1# upper.
There are several here that will not agree,but I like them.
There are several here that will not agree,but I like them.


