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Not necessary, I do however, use a touch of anti-seize on the threads of brake line, fuel line flared fittings... it helps take away that pucker factor when you're cracking them loose after time and the elements have had their way on the connection.

Ran 3/8 SS pre-bent pressure and return lines front to rear, only used short sections of PTFE for connections.

Makes for a bitchen coffee table center piece :thumbsup:

Yup your dealing mostly with evaporation. Tony Tee has the right idea if your dead set on running a mechanical pump with a carb. Otherwise your faced with converting to all electric system which is what I ran on my Charger for years. Holley blue pump with regulator is about as bullet proof as...

Why worry about fuel economy? Dude your talking about a big block Mopar tucked in a body style that's about as streamed lined as a brick. Unless you opt out for a more modern drivetrain with all the bells and whistles your looking at maybe 12-14 city depending on your driving style.. highway...

What kind of fuel pump are you using? A little advice, don't cut corners on the fuel lines/setup, hate to see all your work go up in flames. :BangHead:

I agree with BLK 68 RT, sounds like you have a vacuum leak. Maybe intake manifold, carb just flat worn out ( throttle shafts ) 70 chall440 also makes a good point, gotta find that base line. Good luck :thumbsup:

3/8 SS pre bent from Fine Lines, both feed and return. PTFE SS braided for the flex connections

Ran 3/8 SS tubing both ways with PTFE SS braided flex line for connections. A good Ridgid flaring tool works great. The flair is actually 37 degrees, had no problems. Held 92 psi overnight. All fittings are SS at McMaster Carr and with the sleeve set up you don't need to double flair the tubing

It'll make tuning more scientific than the seat of your pants plug reading etc... this will give you hard data to work with, 13.5:1 to 14:1 A/F would be the sweet spot

Vapor and return lines usually 1/4 or 5/16 if i recall. Your main fuel line for the BB should be 3/8.

You can do worse brother. Pretty well mannered carb.. for a carb. Have one on the Power Wagon, no regrets.

Sounds like you got a lot of neat parts that haven't been properly introduced to each other. Time to chase the dragon brother, tuning is what your needing.... time to get out the wrenches...or the wallet.

Then really all you can do is work on the choke and idle circuit

You didn't mention what kind of carb your running. If it's a Holley then your pretty much gonna have to live with your eyes and nose burning. You can tinker with it to get it better but you'll be having a winter and summer choke settings respectfully. Every Holley I've had runs a little fat when...

What's your plan for fuel pumps? If running an electric pump it wouldn't be a bad idea to use a return line so not to deadhead your pump which will cause your fuel to heat up (heat soak). If your running a mechanical pump and not worried about the rest of the system then you probably be alright...

130 bucks for a carb kit....what's the world coming to :realcrazy:

Are you making your own? Better idea, buy pre-bent lines. Can get them in stainless or mild steel, takes all the guess work out of it, order the clip package with it. You won't regret it.

Caught KD asleep at the keyboard again :poke:

I got mine and a week later they dropped the price 200 bucks. I called and asked for the new price adjustment.. Wasn't even a issue, bada bing bada boom and had 200 bucks back to help pay for the fuel lines.... Summit is top notch parts depot