I've read from forums that trifecta gets around gm learn down but lowing af ration and other things i don't quite understand I notice Carbon buildup on the plugs should I run a hotter plug to get around this or should I go colder

 

Every tuner has their own way of getting around the learn down feature and the carbon build up is due to direct injection. Run stock spark plugs only and walnut blast to clean carbon build up. There's a how-to on here that u can look up.

 

Trifecta tunes are rich and probably help with the carbon on ur plugs, I've never had buildup on my plugs. Get a hptune from a good tuner. Get Powell oil seperator, and walnut blast ur intake valves and I'll be good. Leave plugs stock