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It is common that as the cam timing is increased more idle timing advance will be needed. How to accomplish this varies depending on the "expert"
You can try an expirement and gradually advance the timing to see where it idles best (but put it back right before driving it). This will give you some rough idea of what the engine likes.
Next set the total timing to 36* with the vacuum line to the advance disconnected from the advance and plugged. See where your initial lands. If it lands in the 16-18* range that is pretty good. If you advance too much beyond that you can start to have too much advance at engine cranking speeds.
Next if you need still more advance at idle you can tune the vacuum advance. First if you have 36* total, you want 14-16* maximum advance from the vacuum can. Many provide 20* or more and will need a limiter to reduce this. You can buy or make something to reduce how far the advance rod can move. Then you want a vacuum advance that is all in at 1-2" less vacuum than you have at idle and connect it to the manifold vacuum port. This will give you close to 30* advance at idle and really makes a bigger cam happy.
Although your vacuum is not really that bad.
You can try an expirement and gradually advance the timing to see where it idles best (but put it back right before driving it). This will give you some rough idea of what the engine likes.
Next set the total timing to 36* with the vacuum line to the advance disconnected from the advance and plugged. See where your initial lands. If it lands in the 16-18* range that is pretty good. If you advance too much beyond that you can start to have too much advance at engine cranking speeds.
Next if you need still more advance at idle you can tune the vacuum advance. First if you have 36* total, you want 14-16* maximum advance from the vacuum can. Many provide 20* or more and will need a limiter to reduce this. You can buy or make something to reduce how far the advance rod can move. Then you want a vacuum advance that is all in at 1-2" less vacuum than you have at idle and connect it to the manifold vacuum port. This will give you close to 30* advance at idle and really makes a bigger cam happy.
Although your vacuum is not really that bad.