Vacuum Control Valve

[hockeynut]

OK, I had a post a couple days ago about my tranny skipping over 3rd and going into 4th. I suppose you could say when it shifted there was slight flaring on all gears as it shifted soft, much softer than my '79 300. I guess I was being lazy and hoping someone would respond with a precise answer, but I got the good links to the trans adjust articles.
So, putting my laziness aside, I read them all again a started to go through step by step. By the way, I just changed fluid and filter, Mobil 1 ATF and it is at the correct level.
So, first thing is to make sure you have good vacuum flow at the T connection coming off the main vacuum line. Two of the articles sugget to drill with a 1/16" bit to "clean out" the orafice if it is slightly closed. Well, I did that, and there seemed to be some debris or what have you impeding the vacuum flow as I got stuff out and my vacuum readings were instantly in the green after that whereas before they moved more slowly to the green.
Ok, so far so good. I go for a ride and now I have really bad flaring in all gears, bad flaring and slipping and very quick shifts Great, what have I done. So I move on - linkage looks good. clearance to the stop looks correct. I start getting to the area of how as you accelerate the vacuum should go down to zero or near it and that if you have too much vacuum it will cause the symptoms I just created. So, next I remove the cover of the little finger that pushes on the plunger as you accelerate. Finger looks OK, I have the car running and hook up the vac gauge to the line that feeds the modulator at the trans. I move the pluger in by hand and see the vacuum go down, but nowhere near zero. I am in the green, and it goes down to 10 or so at it's lowest point. So I read further and pop the cap off the vacuum Control Valve and try to adjust that. I get the vac to go down a little bit - so now thew lowest point is between 5 and 10. Took it for a ride and it still flares badly and skips and shifts way too early. Questions:
1. Did I create too much vacuum flow by drilling the 1/16", or did I just get it to where it needed to be?
2. Is the unit with the plastic finger and plunger that moves in and out with the throttle bad?
3. Is the Vacuum Control Valve bad, not bleeding off enough vacuum?
4. Where can i purchase these parts, I am not seeing them here or at other sites?
Man, I want a manual