I've been told by people to replace the plugs in my 08 Solstice GXP because of a cold issue I'm having. The sticker on the hood says gap at .035. People here said to gap at .028-.030. I do have a tune in it (have no clue who did the tune), I get 21psi of boost, have high flow cat and solo race exhaust. What should I gap the new AC Delco 41-108 (factory) at??? Any help is appreciated!