Here is a picture of a pair of Rochester B's weeping gas because of warpage but some of these carburetors still manage to run fair enough to keep the owners satisfied. It's "pot luck" to get one to run good. Strong raw gas spilling out is another matter all together and needs immediate attention.
I'm sure that this forum "rolls their eyes" with these pictures that I keep showing. Today's Ethanol gas, if left in our old truck tanks unused for months, will break down to water and gas. The tank will rust and everything downstream will have rust in it. A little speck of rust, that the gas filter missed, can cause havoc in your carburetor. I replaced everything from gas cap to carburetor. I only use non-Ethanol. I do not use additives. If I was going to use Ethanol gas, I would replace everything with Ethanol tolerant parts even if I had to convert to a modern engine. If I absolutely had to use Ethanol, I wouldn't let it sit in the tank long before I drained it out or used it up.
As far as carburetors...it's simple as ABC... Always Buy Carter. Big grin.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."
