• Some orders may take longer to arrive due to shipper and supplier delays.
Account Login
Gift Cards
Track Order
Help Center

Holley Dual Feed Fuel Line For 4150 Inlet: 5/8" -18 Inverted Flare


made in usa

Product Q&A
View Now
Click image to zoom
Holley 34-150
More than 10 available
Dual Feed Fuel Line For 4150
  • Inlet: 5/8''-18 Inverted Flare
  • Outlets: 5/8''-18 Inverted Flare
  • 9-1/2" Center to Center
  • 1/8 NPT Fuel Pressure Gauge Tap
  • For Use On Any 4150 with Center Hung Fuel Bowls
  • Ships

    Items You May Also Consider

    34-150 is rated 3.7 out of 5 by 9.
    Rated 5 out of 5 by from Dual fuel line. Fit perfectly. Enough room to correctly attach the fuel line from pump. Exactly what I needed.
    Date published: 2021-01-27
    Rated 5 out of 5 by from Fit my 4150 holley perfectly I am updating the fuel pump to carburetor line to a steel line and this will make for a great attachment to simplify the process.
    Date published: 2021-01-11
    Rated 5 out of 5 by from freds 69 chevelle great value works good with my holley 750 double pumper and thanks to my best friend Duane Houston for his help with my car
    Date published: 2017-04-19
    Rated 5 out of 5 by from Holley 670 cfm I bought this a month ago to take the worries out of my fresh built sbc 400 I have used them before so I'm am sure it's what I needed .
    Date published: 2017-03-28
    Rated 5 out of 5 by from Great upgrade to rubber fuel lines I bought this for my 67 GTO and I am very happy with the appearance and ease of installation.
    Date published: 2016-09-02
    Rated 4 out of 5 by from fuel line the only thing wrong with is that I cant put my fuel pressure gauge on it because of the angle that it sits I had to mount my fuel pressure gauge by the fuel pump
    Date published: 2015-02-14
    Rated 2 out of 5 by from Poorly designed, even after 50 years!!! ? Holley has been making this, like 50 years, you'd think they would get it right. Not. The lines are like, "almost lined up". Had to fiddle (bend) 'em to fit. The "pressure port" is a joke, it's in the exact wrong spot. I'd love to see them put a gauge on this, without hitting the valve cover: useless! It should be pointed UP. Memo to the engineers: when you chrome something, it adds material. A 5/8" wrench (line or no line type) DOES NOT FIT the chromed fittings. Had to use an adjustable wrench! It's on, but took 30 minutes instead of the 6 that it should.
    Date published: 2016-10-10
    Rated 1 out of 5 by from Junk This product is junk.. chrome plating chips off easy. The hole thats supposed to be for a gauge does no good.. the hole puts the gauge right in front of valve covers. The tunes and fittings did not line up. Hade to bend tunes to each bowl. Which made more chrome flake off..
    Date published: 2020-06-14
    • y_2021, m_5, d_11, h_17
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.15
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_9
    • loc_en_US, sid_10001_10001_36412, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Would this work with the street avenger carb? 

    Asked by: Chrisl1995
    Yes, this has the correct spacing for your Street Avenger.
    Answered by: Dean R
    Date published: 2017-12-11

    Does this fuel line fit a 750 ultra double pumper with a electric choke? The choke is on the passenger side and a normal chrome fuel line fouls with the choke.

    Asked by: Bob T5 Mustang
    We would recommend this fuel inlet - Part Number: 555-110821
    Answered by: Rusty B
    Date published: 2017-11-06
    • y_2021, m_5, d_11, h_17CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.15
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_2
    • loc_en_US, sid_10001_10001_36412, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Easy Kits

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.