I wish I was there to help tune this car. I don't believe the above banter about the camshaft has much relevance to the idle problem
But, carry on...……..
I agree. But he's what I consider short on ignition timing and IMO he is killing power doing that in the places where most guys claim to want the power (and I'm using "guys" in the most broad sense of the term and I'm not trying to label the OP and "that guy" because he hasn't really asked that yet).
I'm a firm believer if you do it correctly you can run the OP's CR on pump gas and and run what is considered full timing.
You just need to be careful moving the intake closing ahead trying to do something you don't need to do when the CR is that high, which is cover up a power loss because most guys don't have the CR they think they have.