What is the carburetor number, and what size jets and metering rods are in the carburetor now?
Never assume anything is "stock", it's always best to take a look at what you have, then we can get the correct parts sent with the rebuild kit.
I see a LOT of older carburetors sent here for rebuilding. Pretty common for parts to have been swapped out in them by well-meaning enthusiasts over the years. I'd rather take a look at what's there, and get it right the first time....thanks.....Cliff