Too much cam?
Okay, tinkered with the car today. First, let me say it was a scorching 50 degrees and overcast.
Took the plug out of cylinder 1, cranked it over to TDC. Rotor is pointing to #1 and the plug wire is in the correct spot on the distributor cap.
Change the vacuum secondary spring from the short yellow (chart says it opens the secondaries at 1620 RPM's) tp the black spring and nothing really changed. I've been through all of the springs in the past-but never used the black before.
Idling at 650, if I remember correctly the vacuum was 11.5 lbs., the reason I tried the 9.5 power valve. Somewhere in my research I read go down 2 from the vacuum # in gear instead of going to a power valve half of your vacuum that Holley says.
I increased the idle in park to 1,300 RPM's which gave me around 900 in drive.That got rid of much of the hesitation but it still felt sluggish. That and my wife will come out wielding her rolling pin every time she hears the car chirp the tires going into reverse.
I've read where some of the "idle slots" (or whatever they're called) must be exposed. I really can't see any slots.
Could raising the idle and losing the hesitation be a clue?
Also, looked at the #1 plug and it looks okay to me. I've attached a couple of pics. Sorry about the blurriness, but my teenager wasn't here to operate the camera.