EL CAMINO EFI conversion - fuel return line - use existing 'vent' line or new sending unit??

[HK_Camino]

Hi yall,

I'm doing an efi conversion on my 1986 el camino with the holley sniper kit. I already have a return 'vent' fuel line that goes through a carbon filter box (i think). Would it be ok to use the vent line for the return fuel line the EFI system needs, or do I need to purchase a new sending unit with an extra port and drop the gas tank for the install?

 

[fleming442]

You're screwed on an Elky.

 

[Tomeal]

If you go the fuel sender route, Dixie restoration.

85-87 El Camino 4.3L FI Fuel Sending Unit | Dixie Restoration Depot

www.dixierestorationdepot.com

When they go out of stock, it takes them awhile to come back in stock. I bought mine and it's in the box waiting to be used.

They have them now, so don't take to long deciding.

 

[Mac442]

You could use the hard line used for the vent line (Eliminate the canister), but If I recall, you are going to have to drop the tank anyway because the vent on the sender (and also the return) just dumps the returned fuel into the top of the tank, which would aerate the fuel. You want to make sure the return is dumping into the very bottom of the tank. The kits have an extension tube for this, or at least they did.

good luck with the Sniper, best mod I’ve made to my Cutlass.

 

[HK_Camino]

Sweet thanks guys. I see a spectra unit on amazon that looks like itll also work too if I miss the dixie restoration unit. I'd love to just use the "vent" line already in place, but I think your right about it dumping fuel into the top of the tank... I also read somewhere that there is a baffle in the original sender that restricts flow and can back up if not removed. So seems like the gas tank will be coming out.

Amazon.com: Spectra Fuel Tank Sending Unit FG156A: Automotive

Buy Spectra Fuel Tank Sending Unit FG156A: Fuel Sending - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

fleming422 - such a helpful comment

 

[V8 Rumble]

Use the corvette fuel filter/regulator. it has the return built in. I put one when I did the fitech on my malibu. Avoided running a return all the way back. I kept my vent to the canister.

Part # here https://gbodyforum.com/threads/fitech-efi-swap.59817/

 

[JAMCAR223]

I'll be using this >> https://www.efisystempro.com/oe-style-fuel-tank-modules-malibu-cutlass-lemans-g-body-78-87-12-306
No regulator needed - No return line needed - No tank baffle needed

 

[fleming442]

Well, use the search function, and you would have had some answers without asking..........again.

Search results for query: El camino fuel injection

gbodyforum.com

 

[HK_Camino]

LOL Flem, more nonsense bro get outa my thread if you have nothing constructive to contribute. Everyone else here is having a good time helping each other, not sure what your problem is.

Use the corvette fuel filter/regulator. it has the return built in. I put one when I did the fitech on my malibu. Avoided running a return all the way back. I kept my vent to the canister.

Part # here https://gbodyforum.com/threads/fitech-efi-swap.59817/

Thanks for this tip, I'm definitely going this route with the corvette regulator/filter. Will save me having to run the EFI return line all the way back from the throttle body.