I know these plugs haven't been run in a manner to read them, but i really don't even know what to to discern from them at all and was hoping some pne could help clue me in.
These plugs have only about 5 hours run time on them, of which they have been run on the trailer, idled thru a few no wake zones, 5 or six WOT passes, and a couple miles of cruising.
Just wondering if there is something i need to be concerned about, or are they
NGK heat range 8
BBC 489cid, around 11-1
Edelbrock victor ram
Dual holly 600 dp's
Timing is at 20* initial, 34* total.
Engine was run with 100 octane fuel for the first 3 or four passes, and 91 octane with an octane booster( which I'm sure was no help), for two passes