Up Graded - Performance Damper when do you do that?

The slant six Romac damper will not accept the normal slant six rear or front bolt on pulleys and maintain the OE belt spacing.
Looking closer at side view photos of the Romac damper there is additional material (thickness of the hub) from the edges of the V to the outer edge of the hub in both directions. So even if one could get an add on pulley to bolt up the spacing would be off.
I have included a couple of photos to show the existing front end accessory drive set up.