What Did A 'BO29' Look Like When You Picked It Up At The Factory.
Hurst Performance Research
Main Office
1755 East 11 Mile Road
Madison Heights, Michigan
Conversion Facility
1191 East 11 Mile Road
Madison Heights, Michigan
Here is a copy of a 1968 Dart 383 {for 440 conversion}, that was sent to Hurst-Campbell, Inc.
http://img36.imageshack.us/img36/9018/retailpricing.jpg