Are those straight plug heads? I like that the header tubes are all clear of the plug boots/wires. That's a crazy weird-science EFI manifold. Looks like an early prototype of the Eddy Pro-Flow XT that you snuck out the back door. Did you make a custom log top for an existing tunnel ram bottom? I have my breathers located on the forward portion of my valve covers. The hope is that at launch, the oil moves away from the breathers rather than up and out a breather located in the rear. I'm curious on how you are routing your EFI supply and return to the fuel rails. I'm planning that out for my EFI build. I found lots of excellent info on the Kinsler Website. Check this white paper out: https://kinsler.com/Shop/wp-content..._Proposal_26Pgs_9_19_13_Public_Web-5.pdf