Chirco Performance offers both copper and steel cylinder shims and head gaskets for performance Sand Rail and Dune Buggy air cooled racing engines. These are available in several thicknesses to achieve your desired compression ratio on your performance Volkswagen engine.
Regardless of whatever else I've had for cars I've always had at least one VW. Reliable and easy to work on. Chirco is without question the best place around Tucson to get quality VW parts and service.