I will be interested in your impression. It's difficult to find anything that will give us any measurable gains, mostly because the engine is so well engineered. In the history of the automobile there is no magic formula on engine design, just chance, like the early Ferraris and their Colombo designed engines, or the Offenhausers at Indy. I truly feel ours falls into that category, very efficient, with a high output for so few ci's along with excellent reliability.