I've been trying to go beyond the 0.022" gap on the 97506. Just trying the B58 plugs to see the diff.
Still running good? I think 98 RON is the US equivalent to 93 octane or really close. I put the kit in with the B58 plugs with the stock gaps over the weekend but can't run logs until my wheels get here. Car seems to idle better but I'm also bat shit crazy so who knows.
I'm wondering what affect the 0.029" gap is going to have with me running e40 with meth over the top. I couldn't go beyond 0.020" on the 97506 plugs with the BL coils.