Hmm... I'll have to look again. Clamp or no clamp, I didn't notice the extension at the linkage. I'll have to check again tonight as there were beverages involved last time. grin

[edit]
This is a pic of my old vs. new carb. Doesn't look like it attaches like the W1 you posted.

http://i27.photobucket.com/albums/c...0Truck/2011-11-22163702.jpg?t=1322060081