Anyway, what I did was to buy copper tubing, 1/4 " OD I think, or whatever the same size as the original. I put the open end way down in the collector, between all of the header tubes. Then attached it to the carb with the ferrules and nut from the stock set up. It is basically follows one of the header tubes and then makes one turn vertical up to the carb and looped into the carb.
. First thing I did was rebuild the carb. I found dirt and grime in the small passage that is cast in the carb pad. The previous owner had put a shorter tube to the choke and it must have sucked up road dirt and stuff. The crud blocking the passage was not sooty or anything that might have come back from backfires. So by putting the open end down into the collector it is being protected from the dust and dirt flying around the engine compartment (as best as it can ).
