Originally Posted by Luke02GTmustang
I really haven't seen a change at all. yeah, the later half of the year, Ford changed from 19lb to 21.5 and they are pink. I've read that it could just need a tune for the bigger injectors.
They didn't change the tune when they went to the bigger injectors, so yes, your car probably runs a little rich at wide open throttle and could benefit, performance wise, from a tune.
I HIGHLY doubt that is the source of the blue smoke that you are seeing though, my friend...
Pull the plugs and look for any evidence of oil fouling.
And start checking your oil EVERY TIME that you fill up with gas...