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Bad Backfire

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Old Dec 18, 2011 | 11:15 PM
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Termanalor117's Avatar
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Joined: Sep 2011
Posts: 152
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From: Florida
Car: 1991 Pontiac Firebird Trans Am
Engine: 1987 Chevy 355 TPI Mild Cam
Transmission: 5-Speed T-5 WC
Axle/Gears: 3.42
Bad Backfire

Hi,

Just bought this 1991 Pontiac Firebird GTA and it has a the catalytic converters removed. Not sure if the exhaust is stock or not but the car is real loud! Anyways, when I am going and let off the gas the car gets some real bad backfire. Not just a little but a lot. Back fires about 8 or so times and its real loud. I believe the car runs rich but not sure, also not sure how to find out whats wrong and such. Any thoughts?

Thanks
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