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Your cart is empty.Featuring Stainless Steel construction and a lightweight yet rugged design, it provides a bulletproof method of adjusting secondaries on all Double Pumper, HP, and Ultra XP carburetors. It allows user to pick between 1: 1 or progressive secondary ratio. Kit provides infinite adjustment of secondary throttle blades for maximum horsepower output.
Paulo Di Toro Mammarella
2025-07-23 14:58:38
Excelente
Customer
2025-07-22 11:48:40
worked perfect to improve the throttle progression of my MSD Atomic 2. with stock linkage it was nothing....then too much and chirp the tires! this helped smooth it out from a stop. I set it up where the secondaries come it at 20% primary throttle position. The base of this unit and the software is the same as the holley sniper. You will need to go into the software and adjust for progressive linkage.
Kei
2025-07-18 10:19:40
I received my linkage. The package was missing pieces and others were scattered in the bottom of shipping. Missing 1 cotter pin, and 2 washers. 1 in each size
LISA
2025-06-05 10:16:28
This is the second time ordering this item and pieces are missing. Poor quality control!
GBig
2025-05-06 12:31:37
This little jewel should have come in the box with my Holley sniper EFI. After I installed this baby I had to flash my Sniper firmware to work with the the new. My secondary barrels were opening exactly the same amount as my primary barrels making my take offs sudden and sketchy. Now my secondary barrels wait till I use 40% throttle. Very easy, tons of google articles on how to.
Customer
2025-03-09 15:55:32
Good product, good price, fast delivery
Troy Martin
2025-01-29 09:45:30
Easy adjustable and easy to install. would buy again.
P. MCGAFFEY
2024-11-27 16:46:22
I was able to set my Holley Sniper to pen the secondaries at 13%. Perfect!
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