yea but lets say its reading 30 degrees cooler then it really is. You don't think that could cause any issues?

 

Not these issues.

 

what kind of plugs, stock heat range? or are you using tr-6s?

 

TR6's of course!

 

you said when you got home, shut it off, started it?

and you also said when you checked the plugs that they showed that you were running really rich?

I think I know whats going on, I had the same issue. Whenever you flood the chamber with gas, which happens alot to me when I'm careless, I have to do the thing where you press the throttle all the way down, and then fire it, and it will fire it right up. Then, what I was told to do was to run the car for a while, so that it could burn all of the junk off of the plugs, so usually after I went about 50% throttle or whatever, it cleaned the plugs off, and it stopped doing it for a while. It's a problem with the tune that's causing it, did you have your car dyno tuned? usually they can fix it within like five minutes (the problem in the tune)