Gents -

You guys running a Holley dual feed (4150 / 4160) on a big bock, what are you using to connect the fuel line to the carb inlets.

Most of the fancier ones sit too low and make the fuel line sit on top of the distributor. The only thing that has the right drop is the old chrome Mr Gasket type. I'd like to upgrade it, but can't find one that "fits".

Also seem to have a bit of a problem with the fuel line fittings leaking. Had the same issue 30 years ago and seem to still be around. Thoughts?

Thanks

Archer

 

My mind is boggled, after the years between 1970-74 or so and NOW, but it seems to me that whatever brand chrome fuel line I had, I simply bent it to clear the dist. My recollection is that I simply bent it towards the driver side of the car

I don't remember the brand, but I KNOW I've seen one made up of AN line

 

440 -

I think it's more of a neatness/appearance thing. In the past I used a 1" spacer under the carb, so there wasn't a fit problem. Without it, the braided fuel line sits on top of the dist and is a little too close to the wires.



This is the spacing I'm trying to get with the faux AN set ups. Looking at the Spectre one, but not familiar with the Co.

Archer

 

I used a Russel braided one. The Holley chrome one leaked at the carb fittings.

 

b -

Had no luck with the Holley "trombone" fixture years ago. The Chrome one started leaking AGAIN (leaking would be a nice way of describing it), so I put my old Russell AN back. Only problem is that with out the 1" carb spacer, the line rests on the dist and there's no room for a fuel pressure gauge (I could force it, but it wouldn't look right).

But, at least it's dry!



The old fixture has a long primary tube and that's the problem, have to start measuring the newer ones.

Archer

 

Guys -

Just catching up on a few old threads.

Just put a new 1" 4 hole spacer under the carb and everything fits like it used to...

Archer

 

i have one issue wit the fuel line running that close to the dizzy if you get a leak and a eletrical spark you get a crispy mopar. seen way too many vw's end up burned because of that.

 

mike -

The fuel line is now 1" above the distributor, but that's the way they are typically run on those engines. Loose fuel anywhere in the engine bay can be problematic. Some times, you just keep an eye on things.

Archer

 

i'm suprised that no one thought of making a kit so the fuel line could be attached on the other side of the carb. i agree that you should keep an eye on it but bad things tend to happen when you are driving down the road. but then again i had a truck that had a bad fuel pump that was squtirting fuel on to the exhaust manifold for quite some time til i noticed it.

 

Mike -

Then you'd be running a fuel line directly over a hot header and there's not much room between the tranny bell housing and firewall. Ditto for running it over the valve cover.

Any way you try to run them, there's going to be a potential or theoretical risk, but since that's the way most BBs are set up, including factory, with good lines and fittings, I think it's a pretty safe bet.



This is how it looks now, and I think I'll stay with it.

Archer

 

is it possible to switch the floatbowls around and run the lines on the drivers side?

 

mike -

Never tried, might work, but never seen it done. With that scenario, you'd have the fuel line away the the dist, but running across the front of the engine. Can you say "vapor lock"?

I guess the point I'm trying to make, is that you've got a volatile/combustible liquid being piped over a hot and potentially electrified area. Anything you do is going have possible risks. I think the distinction is the difference between possible and probable. If that worries, braided steel line and AN fittings are as bullet proof as you're going to get.

I'm sure there are records somewhere of gas and a live dist not playing well together, but not enough to loose sleep over, again, IMHO.

Archer

 

that is very true.

 

Why not turn the "trumbone" fixture around and point the fixture towards the firewall. Run the gas along the path of the heater hoses to the rear of the engine and tie the lines in at the rear. I have a 68 coronet with a 400 and I recently installed a holley street avenger and i was very nervous about running the fuel line over the dist. It has been running trouble free for several months now.

 

Gents -

Just curious. How many of the guys who have been doing this for a while are opposed to the factory fuel line routing?

Archer

 

If you turn the fuel bowls around, dont think the accellerator pump would work.

 

i really didn't think about that. and sometimes the factory set up really isn't the best all the time. i have a 74 vw beetle and for some unknown reason when the engine was designed back in the 30's they decided to put the fuel pump right next to the distributor. which resulted in alot of vw's going up in flames.

 

Archer,

I installed a Holley dual feed inlet on mine, I wanted to ask you, what kind of barb fitting did you use to makeit so you could hook up the hose?

is it the same one as would go straight onto the bowl?

I already have the dual feed tube installed, could I put this at the inlet end of it, then hook up the fuel hose to that ?

http://www.summitracing.com/parts/HLY-26-29

 

f -

That looks to be the same as on mine, but I can't swear to the thread size that goes into the dual feed. (Mine is about 30 years old). You can check with Summit to confirm.

Archer

 

This is what I have on my MasterCraft....

 

So is all that braided hose pre fab, or is it a kit, placed over the regular rubber fuel line?

I guess my main question is:

The fuel inlet size on the double feed tube. . . is it the same size as the fuel bowl inlet size? If it is, I think the summit link I put above will work. . . .

 

j -

Mine was all DIY stuff, but there are pre-fab stuff and some speed shops will pre-assemble it for you.

I believe my fuel line fitting thread is smaller than the carb inlets.

Again, I never measured the thread size on the fuel line fitting. If you tell Summit, JEGS or most other places what dual-feed you have, they will be able to tell you what tubing connector you need. That's the best way to do it.

Archer

 

Update.. .

so after a call to summit, the dual feed tube, has a reverse flare fitting at the end, its not like the fitting on the fuel bowl.

The inlet adapter to run rubber hose to the dual feed line (The part i need) is the following part:

http://www.holley.com/34-21.asp

Thanks everybody for the tips!

 

f -

There you go. Cool.

Archer