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Spread-Bore Carbutetor Performance Upgrade Options

Holley offers various options to replace your square-bore (Quadrajet) carburetor for a Holley spread-bore carburetor. You can also perform a spread-bore to square-bore swap.


 


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Attaching custom or specialized throttle linkage to a Holley carb
Check out these tips on attaching throttle linkage to a Holley carb on custom or unique applications. Holley offers a variety of linkage adapters and brackets that can make it easy.





Edelbrock Intake Manifold Dyno Test :: Single Vs Dual + Air-Gap Vs Regular
Edelbrock single plane (Victor Jr) vs dual plane (Air-Gap) intake manifolds on the same engine in a Dyno test at Westech Performance. Plus a test of the Air-Gap vs Regular dual plane intake manifolds. This is an episode I edited.





4165 & 4175 Carburetors
Footage taken from the Holley Carburetor Installation & Tuning DVD





Carburetor vs Fuel Injection - Summit Racing 101
What is the difference between a carburetor and fuel injection? Listen as Dave guides you through 2 barrel carbs, spread bore carbs, race carbs and compares them to EFI. To check out Summit Racing's selection of carburetors, click here: http://www.summitracing.com/redirect?banner=SocialYT4540 For Fuel Injection EFI systems, click here: http://www.summitracing.com/redirect?banner=SocialYT4541





Attaching Early GM Throttle Linkage To Holley Carbs
There are various types of throttle linkages on early GM cars that attach differently to a Holley carburetor. Here are some tips to attach a variety of GM model throttle cables with different transmission applications.





Holley 4150 Street HP carb rebuild- Tear- Down-Part 1/3
here is a video i made when I rebuilt my Holley 4150 Street HP carburetor that I purchased at a swap meet. It turns out it was in very clean condition and would not have needed rebuilding but I wanted to make sure it was clean inside. It was a good experience doing the rebuild. It's always good to learn something new. I am not a pro and this is my first Carb teardown so those folks that feel compelled to say what is wrong with what they see, please don't bother. Remember what your Mom said, "if you can't say something nice..."





Vacuum Lines Connection
Footage taken from Holley Carburetor Installation & Tuning DVD





650 spreadbore Holley carb.
This is a Holley spreadbore double pumper carb that is being tested on a running engine. Tis was filmed on an ipad2.





Carburetor Spacer
Are your secondaries opening all the way? You sure? look again.. especially if your running a spacer...When running a carb spacer or an adapter the first thing you should do is chuck the carb gasket they give you in the kit...





How To Replace A Carburetor: Auto Tips
http://www.blueovaltruckparts.com/ No matter how involved replacing a carburetor looks, the process is in fact very simple. If you have even the most basic of automotive repair skills then you can do just as good a job by following these steps.





How To Install A Holley Carburetor
How to install a Holley carburetor onto a new intake manifold. This video offers tips such as the proper carburetor mount bolt torque specs, and air cleaner clearance.





Dual-Plane vs. Single-Plane Intake Manifolds - Summit Racing Quick Flicks
Learn the main advantages and performance expectations of the two main styles of automotive intake manifold: single-plane and dual-plane intakes. Single Plane Intake Manifold - http://www.summitracing.com/redirect?banner=SocialYT459 Dual Plane Intake Manifold http://www.summitracing.com/redirect?banner=SocialYT460 Edelbrock Performer Intake Manifold - http://www.summitracing.com/redirect?banner=SocialYT461 Edelbrock Victor Jr Intake Manifold - http://www.summitracing.com/redirect?banner=SocialYT462





How to de-bog your Quadrajet part 2
The Rochester Quadrajet has gotten a bad rap over the years, but it's actually an excellent carburetor once you understand how they work. Often referred to as "Quadrabog" or "Quadrajunk", many of the issues these units suffer stem from neglect, or "modifications" that do more harm than good. Being a spreadbore, air-valve secondary design, the Quadrajet is capable of flowing 750 or 800 cfm of airflow, eliminating the need to buy different carburetors when your set-up changes. In addition, the small primaries make for great drivability and fuel economy. In this clip, I'll discuss theory of operation on the secondary side, since that's where most problems arise. So, leave your preconceived notions at the door and let's see what makes these carburetors tick.





Installing A Manual Or Electric Choke On A Holley Carburetor
Installing an electric or manual choke can make engine start ups easier on your muscle car. These steps show how to install and adjust both types of chokes on just about any type of vehicle.





Holley Carburetor Performance Tune - Summit Racing Quick Flicks
Norm covers all of the tips to get the most out of your Holley Performance Carburetor. He covers how to tune your Holley Carb for high horsepower and racing applications. He even goes over advanced power valve and jet tuning for the Holley Carburetor. http://www.summitracing.com/redirect?banner=SocialYT4536





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