Thread: 65 GTO High Efficiency Radiator
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  #17  
Old 01-23-2023, 10:44 AM
uttergto uttergto is offline
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Join Date: Feb 2013
Posts: 34
Default High Efficiency radiator
The engine is stock .030 overbore with a Ram Air 3 cam. Maybe I will pull the spark plugs and look at them. I don't detect any pinging sounds.

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