Yes, another timing question!

Depending on how large the cam is, it may want more initial timing.

If you twist some more timing into it, say 2* does the rpm pick up. If so, it wants the timing. Reset the idle to your base speed whatever that is and do it again. If it picks up, reset the idle speed. Do that until it stops picking up rpm. DO NOT just keep screwing timing into it without resetting the idle speed. As long as it will start when warm without dragging hard or kicking back on the starter, you're good. I usually set it at the most timing it wants or teh limit of the starter... either one it will usually idle better. Had cars want as much as 24-26 initial with 32-38 total so the mechanical advance and curve can be really small/short.

Then you have to open the distributor to limit mechanical to hit your total number. Some distributors are easier than others to adjust.

I'll bet the squirters and pump cams could use some work as well. Pretty normal on most mopars.