Hey Guys, i Have got an Au motor that i put in my XE and got it running well i have had the head machined 30 tho Crow twin valve springs and a small amoutnt of head work, i had a Crow cam in and it was a monster and not anygood for what i wanted, i had a small amount of chain noise in the engine with that cam but i went and bought a smaller DEV5 jim mock cam and put it in now the noise i had, has got louder anybody else had problems with timing chain noise, im about to pull the motor down to turbocharge it, but i dont want to put it back together again and do 10000km and have the same problem.