Hi Mike, The actual bushing is available from NAPA . I don't recommend the Pertronix - dwell is unacceptable, and cars I installed Pertronix on had to be reconverted to points. As far as rebuilder, you might want to contact Don Verity - d.verity@xxxx ; he has a Sun distributor machine, and can set up the distributor properly as per spec once he has rebuilt it. Don's rebuilt a few for me. John