Model B distributor

[daren007]

My B engine with A distributor does not like advance at idle. A little is ok but more and she runs lousy. She is timed properly at TDC. while driving 1/3 advance seems to be the sweet spot for overall driving. If I install a B distributor I am told the timing should be now at 19 degrees before the mechanical advance takes over. This seems excessive. I would think it will affect my idle plus would I get a kickback on starting?