[AG454]

Stock plugs are fine. I have had this cam for over two years and the tune is most important in getting it to run good. Understand that it will never drive like stock at low rpms in low gear, but it should cruise fine in high gears at highway speeds. If you can't find a tuner near you who can get a handle on it, you may want to get a mail order tune from a tuner who has experience with this cam. There needs to be street driving tuning as well as dyno tuning to get it dialed in. A future mod you will find goes great with the G6X3 is gears, 4.10's or 4.11's.