Ok guys, I know it's a dumb question, but sometimes the simplest answers are the hardest to understand (and I did search).
Most everyone uses the same 4 holes (I've also heard these referred to as 'boss mounts') on the block for the motor mounts, but there look to be 2 more holes on the block next to the first 4.
Can these be used in conjuction with the other holes? (I need the mounts to sit further back on the block).
Here is a picture I marked. The holes I'm asking about are the ones on the far right.
Thanks a lot for the help.