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#3254025
Edelbrock 4025 Uni-Syn Carburetor Synchronizing Tool
- Designed to work on small, one barrel and two barrel carbs (downdraft or side-draft)
- Fits carb necks from 1-3/8" up to 3"
- Tool has an outside diameter of 3", is 1.15" tall, and has a tube length of 3.5"
$67.95
/each
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Product Summary
Universal Fit, 3.00" Outside Diameter
- Designed to work on small, one barrel and two barrel carbs (downdraft or side-draft)
- Fits carb necks from 1-3/8" up to 3"
- Tool has an outside diameter of 3", is 1.15" tall, and has a tube length of 3.5"
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Return PolicyEdelbrock 4025 Details
Edelbrock 4025 Details
UNI-SYN "A" Carburetor Balancing Instrument For 1 & 2-BBL With Round Top
If you have more than one carb on your hot rod, you need one of these "Uni-Syn" carb synchronizing tools. Just set on the top of your carb and adjust until all the carbs in your tri-power three deuce set-up read the same.
Works well on small one barrel and two barrel carbs (downdraft or side-draft). Fits carb necks from 1-3/8" up to 3".
Charts
Installation Guide (PDF)
Guides & Documents
Edelbrock 4025 Specifications
Edelbrock 4025 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 4025 |
| Brand | Edelbrock |
| GENERAL | |
| GTIN Code | 085347040254 |
| Outside Diameter | 3.00" |
| Overall Height | 1.15" |
| Tube Length | 3.50" |
| Sold in Quantity | Each |
| Notes | Carb synchronizer works on downdraft or side-draft carbs with neck sizes as small as 1-3/8" to as large as 3". |
Ratings & Reviews
4.8
22 Reviews
Customers find this product to be of high quality and easy to use. It's particularly valuable for synchronizing carburetors on vintage cars, multi-carb setups, and progressive setups. The simplicity in operation makes it a preferred tool for carb adjustments, even regarded as mandatory by many. It's highly effective, accurate, and described as a "must-have" by customers, reflecting its unique functionality and unparalleled performance. Its durability is noteworthy too, with one user replacing a similar tool bought back in 1975. The product is noted to be a user-friendly and economical solution for carb synchronization and tuning.
Ratings & Reviews
4.8
22 Reviews
Customers find this product to be of high quality and easy to use. It's particularly valuable for synchronizing carburetors on vintage cars, multi-carb setups, and progressive setups. The simplicity in operation makes it a preferred tool for carb adjustments, even regarded as mandatory by many. It's highly effective, accurate, and described as a "must-have" by customers, reflecting its unique functionality and unparalleled performance. Its durability is noteworthy too, with one user replacing a similar tool bought back in 1975. The product is noted to be a user-friendly and economical solution for carb synchronization and tuning.
4.8
22 reviews
5
17
4
5
3
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Filter by Ratings
Worth the money
5.0
11 months ago
66 gmc guy
Kansas city KS
Verified
Used this to tune my tri power setup on my small block. Made dialing everything in a breeze! Must have tool if you're running a multi carb setup.
Would Recommend
Good product
5.0
a year ago
Max
Pleasant valley
Verified
Makes tuning easy.
Would Recommend
Definitely would buy this product again
5.0
2 years ago
Megs
Kelowna, BC
Syncing dual Super7 carbs on my 41 ford
Would Recommend
Simple and accurate!
5.0
4 years ago
Dr. Bob
Lincoln, NE
Verified
I use this tool to synchronize carburetors in old British Sports cars and in my old Mercury Flathead tri-power hot rod. It is simple and accurate.
Would Recommend
Would Work As Advertised
5.0
5 years ago
Out1rider
Ridgefield Wa
Verified
I didn't get a chance to use this. I bought 9super7's. The secondary carbs don't have fuel air mixture settings and I'm running a progressive setup.
Would Recommend
Worked great
5.0
5 years ago
hotrodlifer (on Instragram)
Grand Rapids MI
Verified
what I needed to synchronize the 6 Stromberg 97s on my caddy powered 32 ford coupe
Would Recommend
Required for accurate carb adjustments
5.0
6 years ago
Lanced
Bella Vista, AR
Verified
A must for tri power Holley and Ford carburetor on early Fords.
Would Recommend
Works great!
5.0
6 years ago
Robert Sandoval
Santa Fe, NM
Verified
Works great!
Would Recommend
Great!
5.0
7 years ago
Steve
Shreveport, LA
Verified
Thank you for the great service!
Would Recommend
Sync those carbs
5.0
7 years ago
Dave
NJ
Verified
This is the simplest way to really get the synchronization correct, be it a Corvair or a Jaguar.
Would Recommend
Showing 10 of 22 reviews