get in contact with Gude or JG they will have everything you need Gude gorilla cams are sweet if you wan to make power. However it will sound like a caming V8. anyways there stuff isnt to expensive. and go with CP or Wiseco pistons 11.5:1, unless you plan on building the crap out of this thing then go with the 12.5:1 dome pistons. and Bisi should be coming out with his V.2 headers for the d-series soon so look into those. but you'll be able to find most of the stuff your looking for between JG and Gude. There both pro's with the DOHC ZC. Gl with you build