Reply to "Hard miss at startup, then smooth running?"

Check your timing, too. Too much advance (or retard) will cause hard starting. While you're under the firewall cover, check your harmonic balencer for slippage before you reset the ignition. These debond over the years, resulting in movement of the outer ring. So an unwary owner rsets the timing to the erroneous mark shown, and then wonders why the engine runs really bad. One owner recently found his 32-yr-old original outer ring laying on his water pipes....a total failure.