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MrMcD 
Grand Poobah 
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3590 |
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 Posted: April-24-2018 at 3:52am |
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Don't laugh about that MD 20/20, when we were young and broke we took Beer and MD 20/20 on all our Water Ski weekends. Camping on the beach and drinking that stuff at the fire. Great Memories, crappy drink for sure. Have not touched it in the last 30 years.
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baitkiller
Platinum Member 
Joined: October-11-2011 Location: SW Florida Status: Offline Points: 1693 |
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Posted: May-07-2018 at 10:10am |
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So the boat runs fantastic but I still have less than expected power. Only turning 4300 at 45mph. I did a roll-off test and it certainly dies off at full open and regains a surge when you back off a bit indicating small jets. I have yet to check full advance but am right a spec on base timing. No pops, no surges, no backfires or misses. Just kinda stops pulling.
This is the Mercruiser Weber carb that ran perfectly on the old engine..??. So my question to the group is: Do the Vortec heads flow enough more air that a jetting change would be needed? It seems unlikely to me unless the carb was borderline to begin with. I'm going to pull a metering needle and check spring color against the chart today. Im still trying to figure it all out. Thanks for the help. |
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Jesus was a bare-footer.............
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