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I still don't get it.
How can I increase the CR of a stock 1972 1600cc air-cooled VW Super Beetle to 10:1, advance it to 45° BTDC (max), run 85 octane in it, lean the engine to run between 16:1 to 13:1, drive it at 65mph up long steep mountain passes with my "shift into highest gear at lowest speed possible and keep it floored" philosophy, and not get any pinging?
And then someone gets a V8 hybrid, drives it at 40mph on flat ground, and benefits from 91 octane to do that?
It makes zero sense to me.
It sounds like it's coked up with carbon and suffers from hot spots or has poor attomization. That or GM did a terrible job at designing the heads. Did the OP get a poor valve job or something and mess up the seat angles?
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