Component RPM limits

I'm a bit in the dark as well to be honest. I can't hear anything bad happening so far, though it might be hard to hear over the exhaust. It seems like the engine is fairly robust though, at least during cruise. I've had a wide range of timing values programmed over its life with multiple AFR values between the carb and fuel injection and it's never noticeable pinged that I can tell. I've had some surging issues in the past, but it was a fueling issue. I really need a dyno for tuning timing so I can sit still and watch things and listen closer.