runs like a vac leak

I agree with the timing being too low for initial. Should fall around 14-18. My 360 is 20 and 40 total, but I'm at altitude. Are you sure you're plugging the vacuum advance when checking total timing?? 28* of mechanical advance seems like a lot. Not sure on the .050 of that cam but even mild cams can be a little stinky and not want to idle low, cold, or out of time. How's it run on the highway??