[PeteKz]

Sort of.

After messing with both WURs, pulling off the throttle body several times to trace where those nipples actually go, and experimenting with different locations for vacuum signal, I settled on using vacuum directly from the intake manifold, rather than the throttle body. I currently have the 089 WUR installed, and it provides enrichment at high throttle (low vacuum) and high RPM. It behaves about like what I expect. Not perfectly, but close enough.

I don't have a diagram, and I'm not in my shop now, so I'll describe where I take vacuum to the TV and to the WUR. On my CIS, there is a fitting on the left side of the air box, just above and forward of the left intake runners. It goes directly into the intake manifold of the air box. I had a fitting that screwed in there, that has a 1/4" nipple. So I connected the vacuum line to the TV and WUR there. That way I KNOW I'm getting load-related intake vacuum signal to the WUR. And the AFRs seem to work better that way. Try it.

(1) Yes, the cast nipple on the top of the WUR goes to that nipple on the top drivers side of the TB, and it is just an atmospheric vent. It goes there becuase at that point, the air has been filtered, so the WUR won't get dirt inside of it. A slight amount of vacuum is present at that vent nipple, but it's better than unfiltered air.

(2). The nipple below #1, is not vacuum, it's "ported vacuum" intended for the retard side of the distributor can. It should provide a vacuum signal at idle and low throttle settings, and reduce as RPM and load increase.

(3) also is ported vacuum, but different than #2.

(4) Supposed to be manifold vacuum, but from my fiddling, it doesn't quite act like it. This nipple goes to the advance side of the dizzy can. I have my dizzy connected there too.