Picked up block yesterday and knocked in the cam bearings.  Started a little prep work today.  
 
Here's an area that needs to be addressed on every Dart block I've used:  
 
The counterweight on the crank will inevitably rub one of the 
oil passages going to the #4 main bearing and sometimes on #2 and #3.  I usually slather the whole area with a Sharpie marker and I get a good witness mark.  Then comes the die grinder...
More to follow...