Hondata

Can you help me with a recommendation. I have a car k20z3 86x86 mm and 12.5: 1 pistons, stage2 cams, etc. The car is used for 95 octane gasoline on circuit races. the races are short .. 30 minutes nothing more

What is the recommended spark plug grade? grade 7, 8, 9?

thank you for your recommendation

The same plugs as stock (heat range 7) work fine for a NA engine. On a race car they should stay very clean and last a long time.

tks Hondata