Re: question about distributorless ignition systems (Chapel)
The price varies from vendor to vendor. If you want to use a MSD, you probably will want the MSD 6A (Universal for 4, 6, & 8 cylinders) or the MSD 6AL (Universal for 4, 6, & 8 cylinders with built-in RPM control). The 6AL uses a RPM chip that plugs into the MSD box for a rev limiter.
As Dr. Miller said, a MSD or Electromotive unit is not really need for even a modified street engine. The stock VW electronic ignition system is more than adequate for most street applications. When I was running SCCA Improved Touring (IT) with the Wabbit, I only used the VW electronic ignition, and it worked very well. Cheers, WWR.