There is a spec in the rebuild kit for measuring the distance between the float and the surface of the fuel bowl while inverted. Generically this laves the float surface level with the top of the fuel bowl while inverted, but there is a range of measurements (15/64"-1/2") by carb number. There is also a measurement for the secondary float that isn't always the same as the primary setting.
Holley 4160 carbs are a breeze to rebuild as long as you follow the instructions completely.
REBUILDING HOLLEY MARINE 4160 CARBURETORS - $199 DELIVERED
GENUINE MARINE HOLLEY KIT USED - INCLUDES POWER VALVE UPDATE
LED TRAILER LIGHTS, LUG NUTS SPARE TIRE CARRIERS, SAFETY CABLES....
Originally Posted by Bouyhead
Installed my carb that was rebuilt by thatsmrmastsercraft, Thanks Peter!! Hot or cold this boat starts and runs like it fuel injected.