[Brian M]

I have this holley carb, only part number I can make out is:

"6R 5533 B(or

"

The choke horn has been milled and some other stuff done. It is a double pumper, looks like a progressive linkage on it.

What would be a good jetting to start out at for this? Running on a 351c with 246/256 @.050 solid roller cam, 11.1:1 comp.

 

[tony]

If the choke horn is gone, that is where the ID numbers are usually printed. If itis a numbers matching carb, the numbers on the metering blocks may give you a clue.

 

[Brian M]

Choke horn was milled, I dont know if the metering blocks are the same as it looks to be fairly modified.