I'd find the best machinist around and pay him to come look at it. They have some pretty cool repair kits for similar situations to this. Don't for a minute think you are the only person who has done this (whatever it is).

I cannot see any source of a lot of fuel except your injector return or supply lines. Could it be running down from above?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.