Mike,
I have 2 holleys. My main jets are .060 and my power valves are 3.5. The throttle plates in my carbs have a hole drilled in each one to let a little air in for idle. If you want, I will get the exact size of the holes. The setup works unbelivably well. The cam is just over .600 lift. I can idle and put around town all day, or show you my tail lights at a moments notice
Steve