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Discussion Starter #1
My car pings when going up hills quite a bit. On the road it is fine but going up a hill and giving it gas it wants to ping. Any ideas. It is a stock 5.0 HO engine 83'.
 

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Discussion Starter #3
Yes it is. Mainly when on the highway at 35 or so. When I give it gas, a good amount it will ping. On the highway around 45 and I give it some gas to go up a slight grade it will ping bad, sounds like dried leaves getting mulched up.
 
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