no panic I found it.
This cam needs 18 to 26deg at idle. You need to shorten the mechanical advance curve to around 10-14 deg.
The PCV most be hooked up to the carb and the opposing valve cover vented.
You need the idle air flow of the functional pCV.
and the extra timing at idle.
now the carbs throttles will be more closed at idle. and the idle mix screws should be responsive.
If they are not, you can fix that.
What is the actual measured size of the idle air bleeds now?
I figured the cam was a hyd or solid flat tappet with around 240-250 @.050"
Its not that big but still needs more than 14deg at idle to idle real nice.
Give it all the base timing it needs. Then fix up the curve and limit.
Automatic trans or manual transmission?