Timing. That was the question. I did see where the turbo pump was modified with 7.5. And was timed to 10 atdc. The engine sounded really crisp. With absolutely no hesitation. I noticed the same thing when I advanced my 617. But haven't heard whether the 606 can be advanced using the stock injection pump. I tend to think the 606 should react similarly to a 617. But I'd like to know if someone else has advanced their timing and what the results were before I advance my pump. That sounds reasonable. Right?

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