Thanks for the help. I picked up a mech fuel pump today along with the steel fuel lines to connect to the previously capped off line.

I do have two questions, though:

1- There is no fuel filter on my car. Where does the fuel filter go on a 68, and which one should I get?

2- The mechanical fuel pump for the 454 has a 1/4" fuel return (perfect), and a 3/8 input and output connection. My fuel line is currently 5/16". I got all the connections to convert the 5/16" line coming from the tank to 3/8" to fit the fuel pump, and reduced the size of the output from 3/8" to 5/16". The longest run that will be 3/8" is about 10 inches. Will this be a problem with my setup?

I decided to keep the electrical fuel pump on the back side of the car. I have been told this will not be a problem, and will "boost" the mechanical fuel pump.

Thanks again for the help. I plan to get a new tank and clean the fuel sending unit, so all fuel issues will hopefully be resolved.