Default [REQUEST] Dialer and phone apk from 4.2.2

Hi! Just updated to KitKat my Moto X yesterday, so far I've had problems with the new phone and contacts apps, when I try searching contacts everything just goes blank, I've to force close the app and open it again for my contacts to appear. I didn't have that problem when I was in 4.2.2, I really need yo downgrade those apps, I've more than a thousand contacts and i don't like to scroll to find the one I'm trying to call. Hope someone can help me. Thank you in advance!