Dual Webers and throttle position, return? well almost... Options

[jandro62]

I'll take pics tomorrow during daylight. the 914 ran under its own power (down the driveway) for the first time in 2 years! I'm still having some issues though. It seems that the throttle linkage does not want to return all the way to absolutely closed. it sits just shy of that even though I have the idle speed screws not in contact with the linkage. This makes me think that I need an extra return spring mounted to the center linkage instead of trusting the return springs on the carbs to do all the work. Has anyone else run this sort of setup? The 3-4 bank is also pulling a lot more vacuum than the right at idle, even though they look to be relatively close in terms of opening. I'm thinking this is due to
1) small air leak (I sprayed carb cleaner around the base of the carbs and didn't get any result)
2) my timing is still off a few degrees and this is bunging things up (not really likely)
3) I could've sworn the air bypass valves were absolutely all the way turned in

Any suggestions guys?