Not without looking at em... The best thing to do is still tune to the score board and see where your plugs need to look for the best performance.CarbGuy,
Any suggestions: N/A, AR3910 plugs, 15:1, Sunoco 116 gas.
The plugs in the motor running Torco will have a bunch of aluminum fragments on them that say "Venolia"....Different fuels (and additives) will make plugs look different. Engines running Torco will look different than ones running VP for example...