Quote:
Originally Posted by 06GTO
The popping condition with aftermarket exhaust and or headers, is caused by running lean.
Aftermarket exhaust and or headers creates an increase in flow, which increases horsepower and request more fuel.
I had the same situation in my Bonneville when I opened up intake and exhaust breathing, the Dyno with gas analizer showed a 16:1 fuel ratio, which is very lean (ideal ratio is between 12 to 13 to 1).
The question here is who can adjust the CPU with the right fuel/air ratios?
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A tuner should be able to adjust your fuel tables
