I'm glad the group buy deal is working, I just received my invoice and I cant wait to get my valve. Since my carb doesn't have a port for vacuum and they don't recommend using an intake runner source I will need to drill my plenum. I was going to use the booster port on my Performer RPM intake but I guess that wont work so I'm going to pull the intake and find a good spot to drill and tap for a source.
Does anyone else have this situation?

Gus