[Excaliber]

With a new user Dwell can be difficult to measure correctly, or interpret the results thereof.

In combination with the dwell reading exercise some common sense too. The point gap should indeed be close to or around 16 or the thickness of a match book cover is good.

If it's not "close to" that AND your getting what appears to be a good "dwell" reading, something aint right!

Advantage of dual points? Generally speaking more spark at the higher rpm ranges. As to the "stumble" or "hesitation" you speak of: Make sure the base timing is good (14 or so?), the fuel air idle screws are "dialed" in properly and your carb is giving you a nice "pump shot" of gas when you "step on it". Any vacuum leaks will throw off the idle air screw adjustment on the carb. That is critical to a smooth "take off".

Ernie