I am running Autolite 24's gapped at .040. I have stock heads and know that the 25's are the correct heat range for my app but was told that the 24's were OK. Also, I have the Performance Distributors FirePower Ignition Kit which claims I can gap the plugs to .060 but I have never heard of gapping plugs that wide. Here is my question: Should I gap the 24's to .060 or switch to 25's? What should I gap the 25's at? I am battling a slight pinging problem under WOT and I am 95% that my plugs and/or gapping is to blame. Thanks.
Mike
Mike