You say that the comps are 6.5's. Is there only mids and no tweeters or what?
Nick, go into mspaint or something and make a little diagram so we can visualize what you have going on.
To check it out theoretically:
watts = amps X volts
1008 = 70 x 14.4
That doesnt take into account the charge stored by your battery. Should be fine but there's lots of variables. Good luck and have fun.