<VV> Crane XR-700 & XR-3000 Electronic Ignitions

[Mikeamauro at aol.com]

"...I have a new (still in the package) "Crane Cams XR-700   (700-0243) 
Optically Triggered Electronic Points Conversion Kit"...I'm thinking  of using 
it on one of my cars...Has anyone used this kit before or more  importantly 
has anyone been using one for the last ten years (or  more)?..."
 
The Reader's Digest version: I have used the Crane/Allison XR  units for 
many years, in several Corvairs, with great  satisfaction.
 
The more detailed, version: I have used the Allison (then Crane/Allison  
when Crane bought it) XR units, in several Corvairs, for at least the past  
15-years. I started out with the XR-700 model, but in recent years I've  
switched over to the XR-3000 model... nothing really wrong with the 700 design,  
just that the 3000 allows a full 12-volts (without a ballast wire or  
resister), and controls the dwell... from the XR literature: "...The XR700  
requires ballast resistance to limit coil current. The XR3000 is a high  
performance version with a computer chip that controls coil current and dwell.  When 
installing an XR3000, all OE ballast resistance must be bypassed. See more  
here:  http://www.cranecams.com/uploads/instructions/90000700.pdf . 
 
Mike Mauro