Brake booster check valve grommet Vacuum Leak - Stalling

So just to follow up,
I think it was a combination of problems. The nesting grommets were leaking. I glued them together and they are good now. I adjusted the timing a little and it really like that. The hardest one to track down was a charging problem though. I was intermittently getting poor to no charging out of the alternator so I replaced it. I'm not sure what all the parts are but one of the six little bent pieces of metal you can see from the back had come apart. I think that i was sporadically getting a really weak spark or losing spark when the battery was near death and the alternator hadn't been spun up enough.