So I'm at the point of putting my B16 in and would like to know if I should go with stock size valves or the 0.5mm oversized. I plan on staying N/A for now but may end up turboing down the road. Once I pop the head off I may do a port and polish with 3 way angle valve job. Can anyone reccomend something? I am new to this engine work thing and just need some sound advice. I have about $1000 to spend on Valves, springs, and retainers. and Skunk 2 offers a decent package on the 3. I keep calling the local guys but there in the middle of race season here and take like a week to get back to you on anything.