I had developed a small detonation issue after doing some mods to my car. I thought I had it all taken care of but still occasionally get detonation on warm days at high RPM's. I pulled out the AWSF32's that were in and went with AWSF22C's. That seems to have helped. My old plugs were pretty nasty so I did seem to get smoother response from the car...however, I also installed an O/R H today. Now I have a rough idle. And the jerkiness you get when you lay into the accelerator while in a hgh gear but going slow seems to REALLY be bad now (did that make sense?) I know stock gap is like .54 but I was told to gap these at .45. Now having said all this...what could be the cause of the new idle problem? Could it be plug gap related? Would the O/R H and dumps cause this? I havent ever heard of either of these causing the rough idle. Anyway...Im at a loss and I really dont want to switch plugs...if you think stock gap is better for the colder plug let me know.