questions on timing an engine

So i should just set the rpm at 3000 set the timing at 35 degrees on my timing light and just leave the initial timing wherever it lands after that? And the distributer i have is the mopar vaccume advance distributer, it came with the engine when purchased from mopar i thought i had read these distributers have a fast curve in them? and that it all comes in around 2000 to 2500 rpm? i'm sure somone here knows when its done advancing and all that?