It was my spare core, ported and rebuilt. All new bearings and seals. The porting I believe he charges $395 for and the SB with rebuilt front drive was $595(retail) I've known Bob for over 20 years and I worked for him for awhile on and off for special projects (I'm a machinist myself) and he helped me with the build on the big block Chevy in my GTO and ported my new Dart Pro 1's .
Check out his site at www.Stiegemeier.com and there is a video on the home page of me running the blower dyno that I designed and built. It's all electric, portable and spins the superchargers up to 18,000 rpm. It totally datalogs measuring air temp (twice) air density, load, and calculates cfm and tells you how much power it takes to spin the blower at any rpm. I worked with a retired EE that worked at Boeing and IBM (he designed all the software and I integrated all the sensors into the test platform) and it took damn near a year to get all the datalogging straightened out because of the interference from the 500 amp motor
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