I don't think i could ever go with an underdrive pully. i should look into an over drive pully for my alternator. the TI600.2 hits up to 88.96 amps, and the TI500.4 hits 86.50 amps. the factory alternator is 90 amps... yah, my lights will dim

maybe not if i use 2 batteries and a capictor. though maybe some sorta over drive pully would be best.
so is that red cap bettery better then the factory one? think i'll take you up on that offer to take it into pep boys for the warentee.