Well motor finally arrived back yesterday,[refer my post atomic motor before xmas] from Brad at Atomic.No real answers as to why it happened,hes saying it been overheated,dont know how,there were no signs of overheating when we had it,then he said it had been pinged,but I ran it in,on 90kph for 1000kms,so another mystery.No explanation on how some of the head bolts were loose when it arrived,lucky we picked it up,otherwise the motor would have been completely stuffed.Hes replaced the motor parts that were stuffed,but freight back to him for repairs then back here,he wont pay,also the removal & reinstall of the motor,he wont pay.At the moment I have lost all my enthusiasm to race,its demoralizing to think that I paid big bucks for this motor,& all I got was accusations & a lot of grief,never again.He didnt even send it back on the cradle that the guys here made up for it,that's crap.Lesson learnt,atomic parts number 1,atomic built motor "no way".Hopefully when I finally get back behind the wheel,& Dont have any more problems,I will get the bug again & see what this baby will do. Brad if your reading this