Up Graded - Performance Damper when do you do that?

Thanks again for the link to the RERA.org, interesting

I am going to look closely at the Romac Dampers, a few questions on those.

question 1) there are two Romac dampers for a slant six, their online info is a little confusing, depending upon which web site is visited.
I have posted links to both below. I want to order the right one.
It appears that the 0224SA is that correct for a cast crank. But that may not be correct.
Interesting that the web site that mentions the differences does not give part numbers
and the site that give part numbers does not mention the differences.

site 1
http://www.romacusa.com/downloads/Romac ... s%20US.pdf
site 2
https://www.hemiperformance.com.au/shop ... ancer.html

question 2) Anyone with actual experience, will a slant six AC pulley, the one that fits on the back side of the damper, bolt to a Romac damper?

thanks