Carbs
#22
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4-5 lbs boost at 4000 feet, is prob like 2-3lbs of boost at sea level.
I would get an o2 sensor installed, and get fuel dialed in. See how it runs. Id order some new pulleys, and get the boost up.
You prob have 100hp or more on the table.
I dont think adding msd is gonna do much for you.
I would get an o2 sensor installed, and get fuel dialed in. See how it runs. Id order some new pulleys, and get the boost up.
You prob have 100hp or more on the table.
I dont think adding msd is gonna do much for you.
#23
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Nothing will kill a s/c engine faster than running it lean. Make sure the fuel tune is right, before turning up the boost.
Whats the fuel system setup? Pickup, line size, filter , pump, etc ?
Whats the fuel system setup? Pickup, line size, filter , pump, etc ?
#24
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I'm not running lean probly a little rich plugs have a dark shade to them also back of transom has a haze on back from exhaust where do I put a 02 sensor so it won't get wet? Wiband would be so great I'll shoot u a pick of motor and exhaust tomorrow thanks buddy appreciate all your knowledge and help
#27
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What exhaust are you running ?
Mercury used to sell "high altitude " pulleys for the sc engines for this reason
Measure your pulleys you have now as precise as possible, and i could tell you what youll want to order
Mercury used to sell "high altitude " pulleys for the sc engines for this reason
Measure your pulleys you have now as precise as possible, and i could tell you what youll want to order
#28
Registered
I'm not running lean probly a little rich plugs have a dark shade to them also back of transom has a haze on back from exhaust where do I put a 02 sensor so it won't get wet? Wiband would be so great I'll shoot u a pick of motor and exhaust tomorrow thanks buddy appreciate all your knowledge and help