https://www.forabodiesonly.com/mopar/ams/distributor-starting-point-for-a-curve.182/
Seems like this agrees with your thinking. 14 is probably on the low side for an initial with that cam.
Definately worth trying more initial. 16* ?
Or if you have to set it at 1000 rpm, 18* or 20*. Then when in gear see if you can get another reading on it.