I have purchased the Holley Sniper basic kit for my 440 Challenger. I also bought the Spectra efi fuel tank. I have one 3/8" line to the original tank. I bought another 3/8" line for the return. They are both 3/8 tubing. What should I use to connect them up to each end? Also, I need to install a 10 micron fuel filter. I'm open to any and all ideas.
Thanks

Did the EFI fuel tank come with a fuel pump? If so there should be an outlet fitting and an inlet fitting. Just connect the pressure line to the outlet and the return line goes to the inlet. You would need to post a picture for us to know what the fittings are. These days I'd expect AN fittings on the fuel pump but they could be NPT or tube or hose.

You can install a 10 micron fitting somewhere between the pump and the Sniper. Maybe mount it under the car or on the inner fender. Summit has a bunch of fuel filters so just fine one that will fit where you want to mount it. Buy a filter that has the correct fittings on it so you can tie it into your fuel line.

I copied this image from Summit Racing. It shows the fuel outlet. It is just a standard tube with a formed barb on the end. I don't know if a worm drive clamp would stand up to 60 or so psi.

That must be the wrong photo, an efi tank won't have a hose Barb end like that

Check out tanksinc.com for your fuel items. That's where I got all mine.

If Spectra put hose barb fittings like that on the tank then they must think it is okay. Give them a call and see what they recommend for clamps. If that picture is accurate then there appears to be enough room to double clamp it.

Those hose barbs are for the fuel vent system to allow the fuel tank to get full they are not part of the pressure system

Additional Googling says that Spectra puts barb fittings on lots of their EFI tanks on the fuel supply/return.

You have a couple options.

-Chop the barb off and weld an AN fitting to the end.

-Chop the barb off, put a 37* flare on it that mates up to AN fittings.

https://www.amazon.com/Deluxe-Degree-Line-Flaring-Tool/dp/B01N1566TZ

-Chop the barb off and use one of the tube to AN fitting adapters. Up to you, they are allegedly not rated for EFI pressures but many people say they use them for EFI conversions:

https://www.summitracing.com/parts/sum-2200077b

-Leave the barb, buy appropriately rated EFI fuel hose, and then use Oetiker clamps to secure it:

https://www.amazon.com/Oetiker-18500060-...MKC2SF7S76H1KFZ

The Oetiker clamps are much better than a standard worm clamp but you need to use the appropriate crimping tool with them.

Spectra EFI tanks have barbed fittings. Just use the common Push Lock rubber EFI hose you can get from anyone(Earls, Aeroquip, Etc.) and use EFI hose clamps on the barb ends. The rubber EFI hose and clamps are common in alot of EFI fuel system kits you get now. You are only working with 60psi on the high end for pressure. I have done a few kits with rubber hose and have not had any issues.

No problem using barbed fittings with hi pressure efi if you use the correct hose and clamps. Most parts stores have efi specific hose in stock, and the correct clamps. Here is what the clamps look like...

Looks like Earl's has a complete line of hoses and fittings for this type of application. I haven't used any of this stuff but I'd try it if I had a need for it.

https://www.holley.com/products/plumbing_an_fittings_and_hose/vapor_guard/

Yes, use EFI hose clamps like above, and EFI rated fuel line.
The supply line is 3/8", but I think the return is 5/16" (about 8mm.)

Here is what I used to adapt my B-Body Spectra tank to -6 AN:
Aeromotive 15635 AN-06 Male Flare to 5/16 Barbed end.
Derale 98204-6AN male x 3/8" AN Hose Barb Fitting.
XtremeAmazing replacement for AAS 5/16" Fuel Injection Hose Clamps FI6 (Pack of 10) 1/2" - 9/16" Dia.
XtremeAmazing Replacemnt AAS 3/8" Fuel Injection Hose Clamps FI8 (Pack of 10) 9/16" - 5/8" Dia.
Gates 27348 Barricade MPI Fuel Line Hose (5/16" x 15')
Gates 27349 Barricade MPI Fuel Line Hose (3/8" x 15')

Got all the above off Amazon, but prices were cheaper a few years ago, so might check around for better prices.

Low cost fuel filter would be the GM EFI type filter. K&N makes a factory replacement, part #PF-1000, I think about $12. That filter has 16mm threaded ends, so you need a 16mm x 1.5mm to -6AN adaptors (2). I used Earls #991955ERL ($8.75 each.)

I think the GM / PF-1000 filter is 10 micron, I could not find the specific filter specs on it. I am using it on my Convertible with the Edelbrock XT EFI.
On the Charger, I have the K&N #81-1000 filter. it has a 25 micron stainless steel screen filter, but costs $119. using it with the FiTech EFI.

Got the filters and adaptors from Summit Racing.

That is good info. I didn't know there were EFI fuel clamps but now that I look them up I see that they are very common. I've plumbed a bunch of EFI systems so far but they have all used AN fittings and hose. Good to know that there is such a large selection of EFI hoses and clamps for the rubber line applications.

Thanks for that info. It appears that you have done what I need to do.

I found a Holley10 micron filter that has the hose barbs on each end. I'm thinking that I'll connect it to the fuel line in the engine bay and then go to AN with one of the adapters that you linked to.

I saw somewhere that I should put a pressure gauge in the supply line. Did you do that?

Sounds like you're on the way. I highly recommend a pressure gauge. It is the first thing to check if you have any problems with the EFI system. Too bad you have the base level Sniper. I always recommend people spend the extra $200 and get the Super Sniper. The Super Sniper allows you to track oil pressure and fuel pressure electronically so you can see the values on the dash or in the data log.

Those parts are cool, easier than ever. Will they pass tech at the track? Are there any efi specific rules?

OP didn't ask about passing tech. That is a different question with a different answer. NHRA usually only allows short sections of rubber line so you'll need hard line or AN lines to pass tech.

I didn't feel that was necessary for my street driven car.



I am using hard line from the tank to the front.

I should put a pressure gauge in the supply line
AFAIK it goes after the regulator, most EFI assumes 43.5 psi for selecting injector size and duty cycle.

On a Sniper you hook the fuel pressure up to the throttle body since the regulator is built into the throttle body. There are a couple of places on the front of the throttle body where you can attach a fuel pressure gauge.