How does my contraption look??

ramcharger said

A return line is used with a by-pass style regulator on a carb'd car. One line in and one slightly smaller line out for the return. The advantages are less stress and a cooler running fuel pump and a cooler supply of fuel to the carb. It will eliminate any chance of vapor lock too. The only real down side is the cost for parts and plumbing the return line back into the fuel tank.

Edit: crap, SS beat me to it.

Click to expand...

you make a good point....but honestly running a return off the regulator doesnt do the carb one lick of good. Seen tons of people do it though. The carb sits on top of the biggest heat source...the motor. THAT'S where the fuel interchange needs to take place, not at the regulator. I never have understood why people run um off the regulator. Runnin the return off the carb puts the carb smack dab in the middle of the fuel system right where it needs to be. You'd be surprised how much better they run when you rout the lines that way.