i didn't mine any of AC but i bought all my coins and i have around 600k AC will i lose any of my coins if they were from the premined?
or the new code will only kill the premined coins in the dev's wallet?
No you won't lose them, and yes, it will only kill the premined coins in the dev's wallet.
you should delete the scam description on twitter. Start fresh, and this scam is not your fault. just saying

Official Fork sounds better to me.
I edited and removed the "scam" word. Please retweet and spread the word, especially if you have a lot of followers which helps a lot. I know there are a lot of AC investors who don't even know about this thread.