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What causes a 1993 5.0 mustang gt with the 302 engine backfire between 50 to 70mph?
Wiki User
∙ 15y ago
Unburned fuel is igniting in the exhaust, you may have a fuel metering problem, or a timing problem.
If the timing chain is stretched it could throw off the spark timing at high rpm.
Wiki User
∙ 15y ago
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