C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Holley 4 barrel carb question

Thread Tools
 
Search this Thread
 
Old Jan 9, 2012 | 02:30 PM
  #1  
cherokee2602's Avatar
cherokee2602
Thread Starter
Heel & Toe
 
Joined: Aug 2010
Posts: 21
Likes: 0
Default Holley 4 barrel carb question

I am running a 650cfm Holley 4 barrel carb and was wondering if there are any differences in gas mileage between carb's.
Reply
Old Jan 9, 2012 | 02:34 PM
  #2  
RIO68's Avatar
RIO68
Burning Brakes
10 Year Member
 
Joined: Feb 2009
Posts: 780
Likes: 1
From: Shelby NC
Default

Originally Posted by cherokee2602
I am running a 650cfm Holley 4 barrel carb and was wondering if there are any differences in gas mileage between carb's.
Depends on the specifics of the engine and carbs??????
Reply
Old Jan 9, 2012 | 02:37 PM
  #3  
cherokee2602's Avatar
cherokee2602
Thread Starter
Heel & Toe
 
Joined: Aug 2010
Posts: 21
Likes: 0
Default

stock L-82 350 Just wondering if the holleys are gas guzzlers. I'm looking to get another carb.
Reply
Old Jan 9, 2012 | 02:38 PM
  #4  
cherokee2602's Avatar
cherokee2602
Thread Starter
Heel & Toe
 
Joined: Aug 2010
Posts: 21
Likes: 0
Default

It does have an Edelbrock streetmaster intake.
Reply
Old Jan 9, 2012 | 03:08 PM
  #5  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Default

Neither the Holley nor the Edelbrock are stock. What type of mileage are you getting?

Reply
Old Jan 9, 2012 | 03:10 PM
  #6  
Marlin's Avatar
Marlin
Drifting
 
Joined: Aug 2005
Posts: 1,372
Likes: 4
From: Springfield VA
Default

I don't think there would be a BIG diff between one or another unless 1 was not tuned well and the other was.
I would spend the time to make sure you have the best size jets and the carb does not have any maintaince issues.

If you want better gas milage after that then look into a F/I system. You can get a TBI that will fit your intake or spend more for multi-port.
Reply
Old Jan 9, 2012 | 04:08 PM
  #7  
capevettes's Avatar
capevettes
CF Community Team
Supporting Lifetime
20 Year Member
Active Streak: 90 Days
Active Streak: 120 Days
Conversation Starter
 
Joined: Oct 2004
Posts: 19,365
Likes: 5,244
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
Default

The Holley Spreadbores do very well on gas as long as you can keep your foot out of it. They have the puny primaries like the Quadrajets. Of course I can't keep my foot out of it
Reply
Old Jan 9, 2012 | 04:49 PM
  #8  
RIO68's Avatar
RIO68
Burning Brakes
10 Year Member
 
Joined: Feb 2009
Posts: 780
Likes: 1
From: Shelby NC
Default

Originally Posted by capevettes
The Holley Spreadbores do very well on gas as long as you can keep your foot out of it. They have the puny primaries like the Quadrajets. Of course I can't keep my foot out of it
Reply

Get notified of new replies

To Holley 4 barrel carb question

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo




All times are GMT -4. The time now is 05:28 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 11:09:53


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE