Hello!

I was wondering how should the fuel lines be on a 71 cuda

w/ a 340 engine
w/ a 383 4 BBL engine
w/ a 440 4 bbl engine
w/ a HEMI engine-

I know on my 440.6 car I have the 3/8" fuel line, then I have a return line, and I also have a vapor line that goes from the vapor separator to the ECS out back.

How about the other engine configurations listed above?