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Holley 0-80770 4150 770Cfm V-Sec/Ec S-Avenger

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$563.95

$ 99 .00 $99.00

In Stock

About this item

  • Optimized street calibration that works-out-of-the-box
  • Factory preset electric choke for easy startups (Range identified and restricted for easy no trouble adjustment)
  • Built in No Trouble fuel inlet filter
  • Street Avenger fuel metering system provides precise fuel control for great low end torque and awesome acceleration
  • Gen IV No Trouble power valve


Street Avenger carburetors are known to bolt on right out of the box. The 350 CFM Street Avenger carburetor has great features such as optimized street calibrations; two vacuum ports for all necessary vacuum accessories; factory preset electric choke for easy startups; built-in fuel filters; and an included 3/8" fuel line connection so there are no unnecessary trips back to the parts store.


chuck coats
August 5, 2025
This is a great carburetor for my 1957 Chevrolet Belair. It's easy to tune and adjust . I'd highly recommend buying one of these .
Steve Harrington
July 12, 2025
I installed this on my 1968 convertible. The gas inlet fittings were bent, they leaked and my car caught fire. Total disaster. With a brand like Holley, I expected better quality. The carb seems to work fine, but I need to rewire and repaint the car.
The customer is right!
June 13, 2025
I took off my Elelbrock performer carb because it gave me lean spots and surges. I decided to try this Holley and it's awesome! Looks great on my '65 Falcon with a 351W stroker motor (389ci). I bolted it on with no adjustment at all and took it to a car show where I was greatly encouraged to put it on the dyno truck that was there. It pulled 330HP, 340torque at wheels with an auto overdrive tranny. Not bad! Smoked all the imports and fuel injected dime a dozen crate motors. I learned later that the carb was only open to 3/4 throttle because I didn't have help to properly adjust the gas pedal linkage when I had put it on (takes 2 people). I wonder how full throttle would dyno with this carb?
OMGSS
June 4, 2025
Excellent carb, adjustments were very close as described. Engine started up no problem, followed directions. Called Holley for correct TH350 kick down bracket, replaced Holley 4150 4barrel double pumper. Vacuum secondary a must with electric choke.
Customer
May 8, 2025
Thank you very much.......
Cody gawryluk
April 7, 2025
Works great so far right out of the box.
SteveO
February 11, 2025
When I first installed this carb the choke would not open using my stock choke wire so I installed another wire directly from the ignition and it still did not work. I tried adjusting the choke, but after loosening the three screws it would not turn at all. I then disabled the choke and am thinking about installing a manual choke. The Holley manual says you should almost be able to just set this carb on and run - not true. Had to do lots of adjustments and it ran really rich at first and fouled my plugs. Will not fit under my air cleaner so I can't use my cowl induction. My engine ran fine with both an Edelbrock and Qjet. Actually dyno'd about 20 horsepower more with the Qjet than the Holley. The Holley is twice as big and gets worse gas mileage than my other carbs.
peter s hinkley jr
February 8, 2025
put on truck , truck back fired blew out excel pump first day .
TramShadyCustoms
December 8, 2024
Looks great, havnt had it running yet but I’m sure it’ll perform great
mike
December 2, 2024
not very happy caught fire , floats were not adjusted flooded and caught fire. still trying to figure out why before i send it back and put my edelbrock back on.
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