special-k
XS650 Member
We have a 73 650 with the twin throttle cables. We put on a set of carbs (twin cable type also) They have a round venturi as opposed to the original style that had a hump on the floor of the carb. We thought they came of of a tx750 but now I'm not sure. In any event they worked fine with a 2-1 header and K&N filters and seemed to be faster?. I know everyone says you need foam filters but I ran both and couldn't feel a difference. Does any one have an opinion/proof of one type of OEM CV carb being any better than another? Thanks.