The engine has a miss on the on destribitor cap on plug number 2 cap
SOURCE: firing order on the distribtor cap on a 1988 350 chevy engine
18436572
Posted on Jan 01, 2009
SOURCE: I need to know the firing order for a 1991
1988-95 5.7L and 7.4L Engines
Firing Order: 1-8-4-3-6-5-7-2
Distributor Rotation: Clockwise
Posted on Jun 28, 2009
SOURCE: took plugs off distributer cap cant remember order
2.4L Engine
Firing order: 1-3-4-2
Distributorless Ignition System
3.0L Engine
Firing order: 1-2-3-4-5-6
3.3L & 3.8L Engines
Firing order: 1-2-3-4-5-6
Distributorless Ignition System
Posted on Jul 24, 2009
SOURCE: rough idle
Barring any mechanical issues you most likely have a failed injector.
Posted on Aug 14, 2009
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