battery getting drained while driving

Optima battery fully charged 12.80 volts.New one wire 100 amp alternator with 4 gage wire to starter.Battery in trunk with 2 gage wire to starter.With car at high idle get 14.70 amp at battery with both electric fans,fuel pump, MSD ,but as I drive the car it will suck all the juice from the battery.Did the MAD wire set up.do not see any more bad wire connections at the wire block at the fire wall.Had the battery load tested at auto zone-tested OK.Any thoughts? This really sucks.