Thanks!

Yes, it is a VW engine. A second set of pushrods and shims seems a small price to pay. But you mentioned "either 7 or 8:1 ratios."

In my ignorance, I'm wondering what is the practical upper limit of compression ratios are for VW engines . . . no doubt driven by what the engine can mechanically take. After all, it is not a candidate for converting to a diesel.

Bob Wilson