Camaro is giving me fits. Its an 89 RS 305 tbi 700r4 car. Havent ran it for a while so i figured id warm it up yesterday. Put the fully charged optima red top in and it would crank over but wouldnt fire. Shot some starting fluid in and it wouldnt fire, then just dead. Looked under the hood and the negative cable was disconnected. It had melted the side terminal out of the battery. Googling told me a loose connection could cause arcing and melt it though i did snug it down with a wrench. Put another battery in today. Turned the key, starter engaged but didnt spin the motor, then everything went dead. Disconnected and reconnected the negative cable, tried starting again and the same thing. Ground from battery to motor/ body are clean, havent had a chance to check positive at the starter. Anybody have an idea why the starter would engage and kill the car? Its like you turn the key and go from good battery to no battery. Thanks for any input.