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?

All engines, fuel pump to carbs were 5/16"

OK, thanks for that extra info....

but how about the rest of the stuff I had listed for the 440.6....how does that work out for the other engines?=

1/4" return line
5/16" vapor line -

regardless of engine size ( if equipped as such obviously )

Right,,,,but did all engines in 71 came with return and vapor lines?

?? bump ??

Only 440 and Hemi had the 1/4" return line.
440 and Hemi had 3/8" supply line.
340 and 383 had 5/16" supply line.
All 71's had the 5/16" vapor line

thanks!!!