Shorrock Supercharged Beetle

This is a call out to all the knowledgeable VW experts out there.
Steve's just picked up a new engine for his Project '60 and is interested to hear if anybody has any information on it.
As already mentioned, it's fitted with a rare Shorrocks supercharger - similar to the one used on the infamous Empi Inch Pincher.
Not many of these expensive superchargers were ever produced and after racking our brains we can't think of a car in this country running one.
The kit is fitted to a 1500cc engine which was running when taken out of a 60s-70s built Beach Buggy about a month ago.
From the information we've managed to uncover, it seems the kit Steve has is complete apart from the air filter.
"This engine is a lovely piece of 60's tuning equipment and is the perfect engine for Project '60", says Steve.

So if anyone out there has any information at all about Shorrocks VW supercharger kits, drop Steve an email on stephen_gosling@ipcmedia.com as he's keen to find out as much as possible.