Ok guys.. here's the issue.. well one of them.. on my 79 gmc I have a quadrajet carb. When I start her up she idles for about 3 seconds then she dies.. and when I press the gas it dies faster. Most times the second attempt to start it works. And when I do press on the gas I can hear a puff of air coming out of the carb. Does anybody have any ideas or advice?? I need her to be ready for winter. Im also having a 4x4 problem.