Does the accufab's linkage make it progressive at all? 105mm is going to be quite a handful if you ever want to drive in a civilized manner, but I'm sure you're well aware of that. I'm not sure, but the linkage on the Q45TB looks like it's progressive. I'd definitely love to see more progressive designs on the monster throttle bodies that are around these days, it's not terribly complex and can help a ton off idle.