Congrats on the ignition system. Sounds like you are running out of dwell near 8000 rpms as you suspected. It will start missing like you said when it doesn't have enough dwell for the rpms occurring. More dwell will increase your battery drain, but that doesn't sound like a problem if you're getting an hour or more out of a battery.

You won't believe the difference in power if you go to the Mac 32!!

Oh, and someone asked if that's me in my avatar... Nope, that's my beautiful wife and I'm a lucky dog!

Take care,
av8tor