Yes....2 days after I solve one problem...I have yet another Just replaced coils 2 days ago to get the 8 running and it has been and still is running great! Only problem is now when I get on it decently hard, it bellows white smoke out the exhaust. I got the full TurboXs exhaust (midpipe back). Any ideas?!

 

White smoke is typically from coolant burning. Check your coolant level.

 

+1 to 9krpmrx8's post. Other issues you were having may have resulted in damage to the engine core creating a crack which is allowing coolant into the combustion cycle.