The engine is gorgeous, but I'm kind of curious about all the plumbing on the firewall. Is that part of the air suspansion you mentioned? Also wondering about what specs the cam has. For a first effort, though, you did a heck of a nice job. One other thing you might consider before you spend a bunch of dough on interior and paint is to convert the front brakes to discs, if you haven't already done that. The stock drum brakes on anything from 1966 are pretty sad, and there are several disc brake conversion kits and/or parts swaps to do the job that don't cost a fortune and will make the car a lot safer to drive.