I'm lookin for a carb kit for my 1958 Ford F100 with a 223. It has what I was told was the original 1 barrel, glass bowled, holly carb. The holly people told me that it would either be a model 1904 or a 1960 carb. Having a little trouble rounding up a kit. Also wondering what the difference is in these two models of carbs? Is one better then the other somehow? Any helpful info would be great!