Recommendations on cam gears for milled head

i have a b20 with a polished head that has been milled 30thousandths of an inch...
i have cam gears on it adj'd 2 degrees +/-

what is a recommended setting on those?

get it on a dyno

you might need new gears 'cause some people find that after milling the head and trying to tune, the gears don't -/+ enough to get the cams tuned properly, and yes this must be done on a dyno

i have aem cam gears set 2 deg's +/-... it runs smooth....

i'll be dynoing soon... i was just wondering if anyone had any data from their own info...