Re: Engine Miss I Think?
Could be either fuel or ignition.
Check fuel filter, if it's running out of fuel under hard
load, lean, it will do as described.
Check ignition - the missing/popping could be crossfiring
between cylinders, a partially broken plug wire, even a
flashing over coil.
Check everything closely, including the underside of the
rotor and the ends/corners of the coil.
Look for whitish/grayish marks. Those marks indicate
insulation breakdown, solidified smoke.
Replace anything with those marks, including plug wires.