Need input from big cam users.

Really that's a pretty small cam but you may still need a looser converter to get it to idle in gear. You probably need to ditch any vacuum advance, limit the mechanical advance so you can keep about 22-24 degrees at idle with a max of about 34. Next I would suggest reducing the size of the idle air bleeds which are probably about .120 or .080 in that carb to about .040. You may find it necessary to crack the secondary blades a little so the primaries aren't open too far and passing the transfer slot. If that doesn't work reduce the idle air bleed size in the secondaries, after that drill a .125 hole in the primary blades. One step at a time though or you may go too far.