ill second what alman says, although i will argue that it isn't a nano its just a great blitz. also i want too add your gonna want too user the FS here and attempt too cover the huge area of the field that is left open due to the flats being covered and you bringing 6 blitzers.
another great play with flat coverage, im sure its posted somewhere on here already, but here it is:
3-4 Over
Strike Spy 2
reblitz the nose tackle
Blitz the rilb(your left)
and place in the a gap on your right about on the hip of the nose tackle
this will not always get the pressure through from the a gap but if it doesnt it will get through on the left