I'm kinda new with headwork on a turbo application (well all headwork in general) I talked to a local shop and they told me I should get some nice retainers and dual valve springs but stay with honda oem valves. I would think some oversized valves on the exhaust side would be nice wouldn't it?

 

no..OEM valves are perfect, no point in getting others. oversized are basically useless and are really meant for NA motors with non high lift cams....