**Sudco International **is the world's leading source for Mikuni Carburetors, Parts and Tuning Components for any motorsports application. Just off the press is their new 96 page **5th Edition Sudco ...

Forget throttle tip-in, driveability, and vacuum at idle. Set the thing on Kill Mode via thimble-sized fuel jets, disregard the power valve, and let the carburetor dump as much fuel as possible down ...

Mikuni American's popular HSR42mm Series Smoothbore Carburetors are available in easily installed "Easy Kits" for all late model Harley-Davidson and other American V-Twin applications. Included are ...

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Carb tuning is a familiar procedure to old racers, something practiced from an early age, when anyone with a good ear and a screwdriver would put a tune to their wheels on a Saturday afternoon. These ...

For more than 50 years, the classic Holley 4150-style four-barrel has remained a constant presence in the automotive world, as it evolved into almost countless versions for OEM and aftermarket ...