Has eneybody tried plug indexing.

We had to index our plugs on some of our motors. We had to do it to keep them from closeing up the plug gap. We was running close clearance on everything. It had about 16 to 1 on the compression. The engine builder said you needed to index all plugs to get a better fuel burn.

I have not had much to do with the new mod motors and do not know if it will work. It would be hard to do because you can not see the plugs.