hi guys n gals my 93 sc auto dies in very long traffic jams. new battery, alternator have been replaced months ago............still long traffic ( almost stand still ) on the throgs neck bridge go to bx..leaving long island. i also have underdrive pullies . my thing is........at isle( factoty setting) sitting in travvic on parkway....my car is almost out of juice by the time i get to bx. ive changed my factory alt twice in the last 2 years.. wth?.......this is my daily so i don't get it. regular traffic........no problem...i checked my charging system.13 and half volts steady at idle with lights on heat, etc. u get me in 35 mins of heavy traffic. i gotta do 2 feet driving lol then. she dead . so with that being said.............is the underdrive pullies not charging enough...........? when i put my foot on the gas..light brighten up. so what i have is.............not enough steady charging my alternator in long traffic. fixes.........1 taking off the underdrive pullies and going back to stock to get my factory charging idle.............. 2 upgrading my alternator to 6 g. question.........since the factory crank pulley is balanced with factory balancer.will mine wobble bc i have a bhj balancer on car now? thx in advance.