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Re: Exhaust bang bang bang [message #366776 is a reply to message #366771] Tue, 14 September 2021 15:27 Go to previous messageGo to previous message
JohnL455 is currently offline  JohnL455   United States
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma:
Senior Member
Mine will “burble” during long engine braking, but I have my exact GM copy exhaust system installed so it is barely noticeable.
I suspect your idle mixture may be adding extra fuel causing this to be more pronounced. If you have 3” stainless this may exaggerate it. Correct mixture is balanced best idle just at the lean drop edge. “Emissions” setting would be 25 RPM lean drop per side to get 50 RPM lean drop.


John Lebetski
Woodstock, IL
77 Eleganza II
 
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