watch your A$$ on pulleys. I've got aluminum UD's that came with my car when I bought it. I have a 140 AMP Powermaster Alternator with a pulley the size of the shaft because my crank pulley is so underdriven. works fine above 1000RPM's, but I also installed a 1000AMP Deep Cycle batt. so my lights NEVER go dim. The pulley's free up more than you'd think, just don't go too overboard like mine's previous owner.
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