Re: spark knock or rod knock?

["K M" <symbiotic@hotmail.com>]

>   Ok, I have 12.5:1 compression on my engine on #2568,

Ping!  Try going up a hill when it is hot -- and lugging down the engine 
some. That should really make a noise.  Might want to check your timing also 
-- at least I hope that is what the story is. But it shouldn't make much 
noise at 2,000 without any load. Kim
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