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New pistons for performance VW engines

For those of you contemplating a new type 1 engine John Connolly at air-cooled.net is selling custom super-swirl-crown pistons that can run high compression ratios on unleaded pump premium gasoline. They are not inexpensive, but if you're looking for performance, compression ratios of 10.5 to 12.0 to one can provide a substantial BHP increase. I'm going to try them in a new 86mm x 94mm 2,387cc engine but I probably won't have it up and running until early next spring as it's a bit exotic and I'm waiting on some custom parts (aftermarket case, titanium con rods, ceramic lifters, etc.). One racer is running these pistons in a turbo motor with good success, but he's using racing gasoline (which may not be necessary).
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