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12-13-2001, 01:00 AM
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#9 |
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Registered Member
Join Date: Oct 2000
Location: Ontario, Canada
Posts: 234
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If it's mild backfiring that might be ok. Your new exhaust has little back pressure and scavenges the cylinder better. This can pull raw air/fuel mixture in the exhaust on de-cel under load. This will cause mild backfiring. If it's loud then that's not good.
You might want to check for vacuum leaks. I had a tear in my brake booster diaphram. The thing sounded like a gunshot on de-cel.  Do you have tail pipes? Any droning?
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82 Mercury Capri 302, Comp. Cams, Tremec 3550, 3.73's, 12.8@106 N/A Kevin's Capri Kevin's Mustang |
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