Question 73 Challenger Front to Rear Fuel Lines

[challenger_73]

Can anyone tell me how many different size fuel lines came on a 73 Challenger? Does engine size or Carb size determine what size the fuel and vapor return lines are? I bought a sending unit that has a 5/16 outlet. I assume that makes my front to rear fuel line a 5/16. But the place where I am ordering my fuel line wants to know what size my vapor return line is, which I am not sure of. I'm thinking that it is a two piece 1/4 inch. Can anyone verify this. I don't want to get the wrong size fuel line and end up having a fuel restriction. Any Help would be appreciated.
challenger_73

[burdar]

Only one feed line size in 73 since the big blocks were gone.  The main feed line is 5/16" and the vent is 1/4".

I don't think the front vapor line is repopped.  Mine cleaned up really nice with a coarse scotchbrite pad and fine steel wool.

[challenger_73]

Do you have a picture of the front vapor line? The gentleman that I ordered it from says that it comes in two pieces. I think that I threw mine away. It would be appreciated If you had or anybody had a picture of it.

challenger_73

[burdar]

Here are two pics I have but they don't show the line very good.  If you still need them, I'll take a pic of my car tonight.  That line in the engine compartment is the only fuel line I have installed right now so you can see it very well.

The line in question, attaches to the center port of the charcole canister.

[burdar]

I took a pic of my origonal front vapor line.  I didn't get one with my line kit but hopefully yours will come with it.

[Chryco Psycho]

you can get to approx 12.0 in the 1/4 on a 5/16 fuel line line
I would go to a 3/8 or bigger for anything over 500 HP

[344speed]

My line from inline tube came with the short line to the vapor can.

[challenger_73]

Thanks much guys! That helped a lot. I don't know what i'de do without you guys. Thanks!