Hood and hing mounts first. Also depending on how tall the set up is above the hood. You will need to have the opening cut large enough so when the hood swings opens it will clear. Mind you that could be on the large side.
Height + opening arc = size of opening
If the hood swings to the right, the left side of the opening would need to be offset, larger to allow for clearance. Not a real problem cause you can balance the sides of the opening. A large opening might not be all that eye happy if you like tight clearances. The picture of the 34 with the shotgun air cleaner illustrates what I am talking about. That is a good fit and with the scoop just above the hood ,no problem the opening is tight.
I cannot tell what the height of the tunnel will be, but could be in play.
The other option for tight clearance would to be make the hood removable, glass is light, no hinges to fuss with and it will give loads of room to work on the hotrod. The attach points could be on the cowl and radiator shell lip.
Just food for thought.
Last edited by pepi; 07-12-2011 at 10:13 PM.