Having problems with your 1991 Pontiac Firebird ?
Spark plug gap size for 1991 formula firebird
\015 I need to know how big of a gap do i need for a 1991 formula firebird 5.7L V8\015
See if you still have the Vehicle Emission Control Information label (the VECI label) under the hood on some radiator support member, probably. The spark plug gap is listed on it.
Repair Help & Product Troubleshooting for 1991 Pontiac Firebird
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