[scarceller]

Here's another option from Crane, this one is inductive (NOT CDI based). It's called a Crane Fireball HI-6S here's the docs:
http://www.cranecams.com/uploads/instructions/9000-6320_.pdf
It has a few extra bells and whistles we don't need but you can just turn those features off.
What I like about this product is that it's Inductive based and produces longer spark events than CDI.
It's used with Crane's LX-91 or PS-91 coils.
Here's the kit with box+coil:
http://www.ebay.com/itm/Crane-Cams-6000-6302-HI-6S-and-PS-91-Coil-Kit-/400303482688?hash=item5d33f26740:m:m8YvIvdnkUgHV4Q C7f_Y-nw&vxp=mtr