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Old 07-15-2018, 08:40 PM   #2
Puddin

 
Drives: 2016 Camaro 2SS
Join Date: Apr 2018
Location: Central Texas
Posts: 1,012
I had the same whistle with those mods but now that I have a ported MSD the whistle is gone. I think it's just the characteristics of the ported stock manifold.
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