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Holley Commander 950 fuel injection with stock fuel lines

Started by 84_I_SOAR, June 09, 2012, 06:09:08 PM

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84_I_SOAR

I will make a long story short, or at least try to..
I got a great deal on  a rebuilt 258 with a Holley Commander 950 fuel injection setup and have taken to doing the engine swap with a good friend who is more knowledgeable than I. Unfortunately, at times, he gets an idea and seems to just run with it at the expense of extra and unnecessary work.

The 950 requires an inline fuel pump and a return line to the tank with as close to 0 psi as possible.
- Do Eagles have a return line from the factory and vapor line?
- If the line is still in good shape is there any reason I would not be able to use it with the Commander 950?

According to the friend and another armchair mechanic, I do not have a return line to the tank in my Eagle. I only have a vapor line and from the quick searching I did on the nest this seems to be incorrect.

I am posting this in hopes of getting some confirmation from a few people so we can stop arguing about the return line and get back to dropping in the new engine.

I've not been out in the Eagle this year and I am starting to get the itch, the avian itch.  :hyper:







mach1mustang351

So use the vapor line as a return line if it goes all the way back.  I did this with a GMC pickup I did a fuel injection swap on.  Easy and the line is already there. 
Fleet:

1987 AMC Wagon 4.0L, 3" Body lift, AX15, NP242
1981 AMC SX4 Sport
1969 Mustang (A Mach 1 with a 351)
1973 GMC K2500
2007 Suzuki Vstrom

ammachine390

6 cylinder Eagles came with return fuel lines, as well as vent lines. No reason to use the vent line when you could use the original return line.
Dan
1981 AMC Concord DL 258 Auto

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thereverendbill

make sure to check the condition of the lines, the fuel delivery line runs on the passenger side of the car and the return runs along the drivers side
1980 Eagle 2 door sedan (future solid axle swap)
1981 Eagle Kammback (restoration in progress)
1983 SX/4 SOLD
1983 Eagle Limited wagon  *For Sale* SOLD
1988 Jeep Comanche Pioneer (daily driver)
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another amc forum
www.amcevolution.com

DaemonForce

Quote from: thereverendbill on June 10, 2012, 12:59:13 PM
make sure to check the condition of the lines, the fuel delivery line runs on the passenger side of the car and the return runs along the drivers side
I'm just going to chime in and highlight this. Figure out what's going where and what condition the lines are in before hooking them up. You don't need a huge mess or fire.
1983 Limited
AMC 258C {R2:27.Jun.13}
Carter 2681 {R2:28.Oct.12}
TorqueFlite A998 {R6: -20.Apr.12}
NP129 {R2:28.Apr.12}
M35-273 {???}
Compression: 0
Corrected Idle: 0RPM

Rebuild:
???

bigdog56e

Think the vent line connects to charcoal cannister and return line connects to carb, IIRC.
                                                                                                                       Eddie

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