Hey guys im finish up My 84 el camino and have been driving it lately trying to figure and work out all the bugs. I put a 5.7L long block motor out of a 95 tahoe in it bone stock. I also swapped over everything from my original motor , HEI distributor with electronic Vacumme advance , carb , a/c smog equipment , I mean everything. When it came time to do the timing on the motor it dose not like anything under 12* , it wll run really shakey and spit out of the carburator and turn off when I stab the throttle. At 12* it runs ok , still Shakey in park and in Gear and I think under powered. However it will not spit out the carb and turn off when I stab it. What can be the problem? Its really bugging me that its under powered and not running smooth. Any ideas? I will greatly appreciate and Help and Advice you guys can help me with. Thanks in Advance.