<VV> Crane XR-700 Electronic Ignition

[HallGrenn at aol.com]

I have a new (still in the package) "Crane Cams XR-700  (700-0243)  
Optically Triggered Electronic Points Conversion Kit" that I probably  bought a 
couple of decades ago.  I'm thinking of using it on one of my cars  this year 
to replace the points.  Has anyone used this kit before or more  importantly 
has anyone been using one for the last ten years (or more)?  I  remember 
someone telling me that the optical sensor kits were not forgiving of  dirt 
inside the distributor.  I also have a first series ignitor on  hand.
 
Thanks,
Bob