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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How To Select Carburetor Selection Square Bore Dominator Choke Manual Electric Spread Edelbrock
Carb Carburetor Selection Quadrajet Square Bore Dominator Choke Manual Electric Street Strip Spread 4500 4150 Edelbrock Flange 4 barrel 2 Secondaries Vacuum Mechanical Race http://www.jegs.com/c/Fuel-Carbs-Intakes_Carburetors/10271/10002/-1 --------------------------------------------------------------------------- --------------------- Follow JEGS High Performance for the latest Racing news, videos, pictures and content! Home Website: http://www.jegs.com SUBSCRIBE to our: YouTube: https://www.youtube.com/user/JEGSHighPerformance Facebook: https://www.facebook.com/Jegsperformance Twitter: https://twitter.com/JEGSPerformance Google+: https://plus.google.com/100400953228950622869/posts Pinterest: https://www.pinterest.com/jegsperformance/ Instagram: https://instagram.com/jegsperformance/ Tumblr: https://www.tumblr.com/blog/jegsperformance Tapiture: http://tapiture.com/jegsperformance A family-owned company with a rich racing heritage and a passion for muscle cars and street rods. We have over 55 years of experience delivering the best high performance auto parts from the best brands. JEGS has a knowledgeable technical support staff, outstanding customer service, and 100% satisfaction guarantee. Our warehouse is filled with millions of name brand auto parts ready for same-day shipping. • Free Shipping & Handling* On orders $30 and over - More Info • The Lowest Prices! If you find a lower price on the same item, change the price and buy • Order By 11pm EST for Same Day Shipping! Delivered fast to your door • Millions of Name Brand Products in Stock! Ready to assist you around the clock 24/7 http://www.jegs.com

The Quadrajet to Edelbrock carburetor swap - step by step
Replacing my old Rochester Quadrajet with an Edelbrock 1406 carburetor. This is a 1984 Chevy K20 3/4, just a yard truck for plowing my property. The old Quadrajet got gunked up from a broken fuel filter so I decided to try swapping on this old Edelbrock. I had pulled this Edelbrock off an El Camino with a 305 I had about 10 years ago and it has been sitting since. I popped the top and cleaned the inside, also flushed the passages with carb cleaner. Seems to run well. The Edelbrock 4bbl is not a direct bolt on to the stock intake manifold. It has a slightly wider bolt pattern and the shape of the openings is different. To facilitate installation I bought the Edelbrock adapter kit model 2696 which was less than $30. It includes the adapter plate, two gaskets, and mounting hardware. I also purchased for about $8 the Edelbrock 8009 throttle cable adapter kit which allows the stock GM throttle cable to interface easily to the Edelbrock caburator armature. The biggest adaption here was the fuel line. The Rochester Quadrajet has the fuel filter in the the front of the carburetor and is fed by a metal fuel line that threads in there. The Edelbrock's fuel inlet accepts a rubber line and is on the side towards the rear. I cut my metal fuel line and attached a rubber line to it with an inline fuel filter to the Edelbrock 1406. This seemed to work very well. I had to extend my PCV hose about an inch. This was easily done by cutting it and splicing with a piece of metal tubing. The brake Booster vacuum line on the rear of both carbs is identical and required no modification. Same with the distributor vacuum advance, same location on both carburetors. Parts Used: Edelbrock 2696 adapter plate kit Edelbrock 8009 throttle cable adapter Rubber fuel line Inline fuel filter Hose clamps Tools: Flat head screwdriver Phillips screw driver 5/8" tubing wrench (fuel line and brake Booster fitting) 1/2" wrench (carb mounting bolts) 3/4" wrench to swap brake Booster fitting Something to cut fuel lines with

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