Hi All, I just picked up a pair of Weber 40DCN14s. Not DCNF the real old 3 bolt base DCNs. I've got manifolds for them but no linkage. For the linkage I was going to try a vintagespeed centre pull as they look real nice compared to the old Scat ones. Main things I want to ask is if anyone can give me a rough guide on jetting? I've got a 1776 in a 75 baywindow thats a 5 seater so not super heavy. I didn't build the motor but the cam feels like a W110 possibly 120 and the heads have 40/35 valves and light porting. Not too sure on compression but I know it was built to the same spec as the how to hotrod book describes and its a strong motor. Currently the DCNs have 32 vents so I was thinking 50 idles, 125 mains with a 220 airs. I haven't pulled them down yet so I'm not sure what emulsion tubes are in there but I've been told to run F24s. Does this sound like a good starting point? Also does anyone else run these if so what linkage are you using and hows it seem to hold up? Are you forever adjusting it as my Kombis a daily and I do enjoy tinkering but I don't want to play with it all the time. Also were do you source your air filters from? Also the manifolds haven't been tapped at all so I'm thinking of tapping all 4 ports and running an X pipe between all four throats to balance them out and allow a decent booster vacuum. I know most people only run off one port but is there any reason not to run a balance tube similar to what you see on ICT's and Kadrons or the factory twin Solex's? Any help's appreciated. Cheers, Patrick.