Mercruiser ing y back firing
07-01-2018 | 06:43 AM
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From: babylon,NY 11702-4116
Mercruiser ing y back firing
Got a fresh BBC w merc ing. All new but occasionally backfires runs good at speed could black merc box do this ? 850 vacuum carb .Motor was on done everything looks good cap wires valve springs !!!! No tight valves ,has hydraulic cam any ideas????
