Great I thought 240cc would be ample, Yea b18c4 head. People say they don't flow quite so well but I don't think they are as "bad" as people claim. I'm getting the head re built light port polish valve re grind 3 angled 30 45 60 degrees.Skimmed 6/7 tho, polished, port matched etc etc (cant find the list they do atm) . ITB S80 4,7 C6 flywheel C6 cams (brand new) HTUNE P28 S300 ecu. Hoping for 200hp. sound reasonable ?