I got 79 original 302 (100k) with gt40p heads,voodoo cam, elbrock intake and 600 Holley. I set initial timing to 15 advance to about 30. The problem is when I turn the idle down past 1400 rpm it seems it’s not getting enough fuel and it dies. I can give some fuel and it idles back up to 1500. I am not familiar with carb tuning. I have not checked my vacuum bc I can get it to idle correct. I will see if I can make a video.