I have a 79 460, and was wondering with all the experience out there, whats the best setting to put my timing at? I had it around 12 degrees. What, if anything, is better? Its stock with edelbrock carb, headers and 3 inch exhaust. Also, with the vac advance, what is the best way of setting it period? when all hooked up and running high rpms what should my timg be? Please help, I need it running top notch for friday night!!!! Thanks!!!!