I just purchased my 72 k5, it has a pretty hot 383 in it. Over the summer i noticed that it would always hesitate starting after i've been driving it for a while.It would act like it didn't have enough cranking power to fire it up? Recently i drove it about 15 miles and stopped to get gas and it would not start. The battery was totally dead, but after about 1hr, it started like there was never anything wrong?? My question is first, has anyone had this happen,and what battery- starter combo would you recommend. I just purchased a Optima red top ( have not installed yet) and still have not purchased a starter.I was thinking of a mini high torque? I should also note that it has a huge stereo, and at night when i have it up loud, the headlights go to the beat of the music , which is probably a alternator problem? Any suggestions would be appreciated THanks,Kenai