Edelbrock setup for dual quad

VA on primary carb.

I know what the guy in the video says, but at least try dialing back the timing and see if it will idle.

I'm a bit skeptical about the advice from the guy on the video. The AVS has upper throttle plates that will not open unless the engine demands that much secondary air. His advice makes sense on Holleys with mechanical secondaries, but not an AVS. That's why it is hard to overcarburate with those carbs.