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Sounds like the timming might be drifting off a bit after awhile. maybe a week tensioner. No sign of the valves hitting the pistons?
I'm just guessing.
I assume it still has a factory cam's in it and no custom high lift cam. Though if the lift was to high it would not have ran very long at all.
Excedding redline can cause valves to bend on some engines. But with the revlimiter I don't see that happening.
What where you doing when the valves bent in the first place, how many miles on it, and was the engine modded in anyway?
Richard
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