
Originally Posted by
crazyguy03
If it's the $200 eBay "high output" I would return it.
He uses the smaller pulley to mimic a high output at idle and cruise. Also the comments of other buyers show it's within stock ratings when they had it tested.
If it's not the eBay one , the smaller pulley may only help at idle as well but the maker of the alternator can give you the specific output at specific rpm ranges.