The holley has more cfm`s cubic feet per minute than a regular carb.and it also puts double the fuel into the intake faster than a regular carb.
There is only one fuel inlet. If you have a double pumper Holley then the one will branch off to two.
This is a model 4150 holley. You should be able to find it by typing 4150 Holley illustration or breakdown etc. into google to find what you are looking for.
Go to this website: www.innovatemotorsports.com , and go to their tech forums.
It means the carburetor has 2 accelerator pumps instead of one, as is normal.
To get more fuel into your engine for bigger spark / bang for more power !!
how do you adjust the float level on a 650 holly single pumper
It will work with an adapter you can get from summit or other parts stores.It would take the same adapter as a holley to a quadrajet since its a replacement for the quadrajet on gm cars.
In automotive terms, a 4 barrel carburetor that has two accelerator pumps, one for the primaries and another for the secondaries.
a double pumper is a 4 barrel carb. commonly made by holley. they were called this because they have two accelerator pumps. one on each float bowl on either end of the carb. most carbs do not have this feature, they usually only have one accelerator pump.
Rebuilding it with rebuild kit and new floats.
that was supposed to be 11:1 compression
Usually the best jet sizes for a Holley carb are the ones that came in it from the factory. Sometimes you can improve performance slightly by stepping up or down one or two jet sizes.