My 318 dyno results

So I haven't been able to get the idle quality where I want. I did try the Holley Ultra Street Avenger 670, but it didn't improve anything so I'm back to the Holley Street Avenger 570.

Cold starts during winter time are terrible. I also get hesitation driving around at low RPM all the way until the thermostat opens and the engine is up the temperature. I'm thinking I need to increase the idle feed restrictor?

Anyways, when I built this engine the Whiplash camshaft was chosen for being used with the OEM 302 cylinder heads, which I later found out were cracked. Since I know have the Edelbrock Performer RPM cylinder heads and I'm unhappy with the idle quality, I'm considering replacing the camshaft. What do you guys think about the Lunati Voodoo 20200710?