"I had the same thing happening I would hit 45 and it would do this weird fluttery jerk shit I had no idea what it was..." <---Best description yet!
Interesting. I think Im going to take this course:
1. Up the "idle" circuit from a a 45 to 55, adjust
2. Drop main to 94 or 92
3. Raise Needle 1 notch
If anything its safe....until the next chapter
Josh, at least we have cast iron cylinders--Hah, scotch brite that shit and put a new ring on it.