[TR] Acceleration Stumble

[rbtr3a at cox.net]

Things I've checked.  Good spark
Nice tan plugs 1st and 4th. Running a  pertronics. Good fuel flow. New gas. Running about 13 degrees before or after. Can't remember (to the left of pointer from front view)

I Noticed the breaker plate was very stiff.  Removed cleaned and lubricated with white lithium grease. Slides  much better. While apart I placed a hose on the front of the vacuum advance and drew on it. It was very difficult to draw enough vacuum to see it move. 
Is this normal?
Could this be the reason she stumbles under hard acceleration? 

She is very difficult to start when cold.  After she warms up never a problem. But cold I have to crank and crank and crank.  

What are the suggestions? 

Ronnie Babbitt
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