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Mpi 454 Backfiring/skipping

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Old 07-24-2006, 08:51 PM
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Default Mpi 454 Backfiring/skipping
I have a 454 mpi backfiring and skipping when i rev it and backfires only on one side. The boat at steady speed doesnt seem to have the power. Before this happened it would only 4300 max with a 21P. It is a 25 outlaw. Only 53 mph max with no weight...seems slow to me. Thanks...
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Old 07-24-2006, 09:00 PM
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Default Re: Mpi 454 Backfiring/skipping
Check fuel pressure, cap, rotor, wires, plugs-basics first. Also make sure timing is set right-8 deg BTDC in service mode.
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Old 07-24-2006, 09:09 PM
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Default Re: Mpi 454 Backfiring/skipping
That boat should run 62-64mph.

Like inspech said check the basics.
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