full potential? i'd say 3000 watts, probably looking at 5-600 for an amp like that. 200-250 amp alternator, about another 4-600 for that, and i'd do one upgraded battery up front and a big 31 series in the rear, bout 500 there, bout another 50 bucks in 1/0 gauge wiring for connecting the 2 batteries, and doing grounds up front for the battery to chassis, alternator to chassis, and alternator to battery positive. also gonna need 3 fuseholders, one on each side of the power wire connecting the 2 batteries, and one between the rear battery and your big amp, plus extras for any other amps you may be running. probably looking at about 50 feet of wire.