Update: I removed and cleaned the rocker shaft ( see my other post). Idled engine forever to get it hot ( clutch was stuck so I couldn’t drive it) then set lash. Immediately my vacuum reading got higher and the flutter subsided some. Then I set timing as best as I could with my light, finally I just put it 4 degrees BTDC per the scale on the hold down clamp, or so. It was several degrees retarded from thst point before I started. Engine seems happier and I’m getting about 21” vacuum at a slow idle.
Got my clutch (mostly) unstuck and took some laps. Still has off idle hesitation inspite of my rebuild on the Rochester B.
Then I sprayed carb cleaner around the throttle shaft and sure enough it’s leaking.
So, I’m making progress thanks to you guys.
This sounds like my 62. I rebuilt the carb and it does ok for a 60ish year old carb. It leaks around the shaft too, but functions fairly well. My vacumn advance on the dizzy stopped working, so I capped the carb port off and Ive ignored the slight hesitation for so long its now normal to me 😅. I have been driving it almost daily for a while, so I just putt on down the road ðŸ‘🇺🇸ðŸ‘.
