Im looking for a fuel system diagram for my 1985 Chevy C10 to figure out how to run a 2nd return line to my tanks. Can I just "T" off at the OEM fuel pump back to the original return line?

Asked by Tristiacon Aug 03, 2015 at 10:18 PM about the 1985 Chevrolet C/K 10 RWD

Question type: Maintenance & Repair

I just bought a new Crate 350 LB 5.7L engine. Went from a stock 305 and now its pretty
much all custom. I have a OEM mech fuel pump, but new edelbrock carb wants less than
6psi than the 10psi that the mech fuel pump is pushing. I have a Holley fuel press reg but
I want to "T" off back to the fuel pump return line. Is it possible? Plus I can't locate ANY
diagrams for the fuel system anywhere, including the Haynes book.

Any ideas?   Thanks

6 Answers

70,925

yes.. higher dollar systems use the return line...i still dont. and if you click on my pictuct you will see a fuel line into my regulator feedind a dominator and 2 stages of nitrous...i dont run a return because tme fuel in my line is not in there long enough to get hot..also..a return will keep a pump cooler and a little bot quieter..but anything stock or a little bigger is a waist...do you have a fuel cell..cause you really dont want a return..put a $20.00 fuel pressure gage oi/in the holly reg.and set it at 5lbs at 4000 rpm ..want to add anoyher return line in to the tank do you... dead head it at the holly reg with one line in bottom one outlet pluged and other outlet to carb...a return system with a big pump/volume only returns the fuel to the tank to keep it a little colder

3 people found this helpful.
70,925

let me find what you need.>ill look

2 people found this helpful.
70,925

here do 2a >http://static.summitracing.com/global/images/instructions/MAA- fuel_pump_wiring_diagram_110_140_0003.pdf

2 people found this helpful.

Your Answer:

C/K 10

Looking for a Used C/K 10 in your area?

CarGurus has 3 nationwide C/K 10 listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    CaptPKelly
    Reputation
    5,200
  • #2
    T_S_T
    Reputation
    1,040
  • #3
    Gene Arnett
    Reputation
    990
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871
Used Ford F-100
2 listings
Used Chevrolet Blazer
17 Great Deals out of 865 listings starting at $21,877
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.