[Longhorn Man]

I real good way to get rid of carbon deposits, is with a spray bottle of water, or a bottle of dextron ATF.
Warm up the engine, remove the air filter and air cleaner assembly. Fire up the engine and either have an assistant hold the throttle, or crank up the throttle to about 1500 - 2000 RPMs. With water, put it in a spray bottle and put the nozzle on stream. Start squirting it directly in the carb. You can spray it as fast as humanly possible.... there is no physical way for you to do damage.
I prefer the dextron. You do the same thing as far as set up, but you slowly pour the dextron into the carb. The best way I can describe the rate of pour, is to dump it slow enough that it is a steady pour, not dripping. However, not so fast that it is a thick stream. We've all played in the sink as a kid, tried to get the least amount of water out with a steady stream... THAT mauch.
The water cleaning method will make steam out the tail pipe, the ATF will make it smoke. but it all clears up.
If your vehicle is equipped with a catilittic converter... DON'T do this. Chunks of carbon can, and possibly will shoot out the tail pipe. If you have cats, this WILL clog the cats.
Seafoam does nothing more than this. (when poured down the carb) And I garuntee you have water or dextron in your house already.