[Chevelle-list] Engine noise!

[Pelle Andersson]

Hi!

 

I have this strange noise during acceleration!

Sounds a little bit like a bolt tapping my M/T aluminum valve covers but a
tad sharper!

No marks in the valve covers indicating that anything is hitting them!

I’ve tried to adjust timing back & forth 16-8 degrees but it’s still the
same!

It’s in sync with the rpm & I can only hear it when accelerating hard!

 

Any ideas?

Pelle

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