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Alternator Underdrive Pulley Alternator Underdrive Pulley
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  #11 (permalink)  
Old 04-29-2005, 01:56 PM
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Cobra Make, Engine: Classic Roadsters, Tweaked 351W, T-5Z, CRII Tech Support Team.
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March has at least two (and possibly more) pulley ratios to choose from. The popular underdrive ratio (which causes charging, and cooling problems), and a "Street Rod ratio" which is more suitable for street driving. I'm using the street rod pulleys, and have no issues with charging, or cooling.

Using an Edelbrock water pump, 180* thermostat year round, and a standard Delco alternator.
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