hey guys, i want to tell you my set up, i've already got the cylinder head its a z6 head, and i got some money to burn, so what do ya think of this

z6 head on a6 block
skunk2 cam
skunk2 springs retainers
aem cam gear
bronze valve guides, better seats and seals
hks metal head gasket
port and polish head,
p-28 ecu with conversion harness,
aem adjustable fuel pressure regulator



can anyone think of any problems i could run into with this set-up? or any special precautions i should take with a mini-me in general?
would a chipped ecu help in defeating detonation at all?