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Timing and Carb adj HELP

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Old 07-11-2003, 11:15 AM
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Join Date: Mar 2001
Location: Las Vega NV USA
My Boats: was a 1989 scarab
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Default Timing and Carb adj HELP

How much timing (Advance )do i add to the motor (sbc 350, only gas is 87 oct) ? It was set up for 2000 ft and now the boat will STAY at 6000 ft. Also, How many Carb jet sizes do I go down ? (thinking FOUR(4)) It's a holley vaccum secondary (no numbers available). I already got a new set of props(volvo) and the motors is running way fat and not much power. Max rpms is 4500 and thats wide open . The Boat will stay up at 6000 ft forever and will not leave the mountain. Thanks for the help.

Rick
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