The comments about copper fuel lines are right on the money. Don't do it ! ! ! If they really did do that on a TV show, it's gonna cause problems somewhere down the line.

When I put the 351W in my '72 Bronco years ago, I came up with a bad vapor lock problem, caused by re-routed exhaust pipes. Solved it just the way you're trying - wrapped the fuel line with insulation, and put an electric fuel pump back by the tank. No more vapor lock. You'll be fine.

Lar.