Fuel vapor/return line

[Flyboy1400]

I'm getting the fuel system cleaned up on my satellite before dropping the new engine in, and thinking about plumbing a return/vapor line to prevent vapor lock. My current thought is to weld a 1/8 ntp bung into the upper front portion of the tank and plum the line in there.

Has anyone here added a return line on these cars? If so where did you plumb it into?

 

[69a100]

What year car?????

 

[Flyboy1400]

What year car?????

It's a 1966 Satellite