1994 M11 Celect

I recently traded up to a 95 Foretravel with a '94 M11 Celect engine. 370hp, waiting on the paperwork showing the uprate to 400hp by Foretravel.
Can this engine use any/all capabilities of the VMSpec?

It sure can.

The M11 was Cummins' first electronic engine, and is completely compatible with VMSpc. Just check to see which diagnostic connector you need (almost certainly a six-pin).