So Dan
You mentioned in your email that you have the MS running in "bypass" mode.
What does your timing light show for advance?
I presume as soon as you connect the bypass it stalls?
(Don't sweat it that's actually a very good sign!)
As soon as we can work out the trigger offest details you will certainly be in full control of your 12x12 ignition timing map. Be aware the "default" map that loaded with MSnS-E is poor and may not reflect the timing you desire for this build. *Edit it in Megatune and "burn")

My initial advice would be to stay "cold" (RICH with minimum advance)and ease your way forward. I will try to find a timing table for the L67.
GREAT LOOKING BUILD BTW!! (I am so jealous) <img src="/forums/images/graemlins/cheers.gif" alt="" />
Regards
WopOnTour