Looking for a race quality non fluid dampener

RockinRobin said
x2 on super damper. I have it up around 7300rpm every time I go down the track.

That’s great and all but failed to answer the question I asked. I appreciate the testimony though.

Oldmanmopar said
made to run 69 and back pulley on 70 up cars for belt alignment and under drive.

You asked “Why not a Fluidamper.” It’s not why not or why. It’s a fitment issue I’m trying to clear up before purchasing. You mention certain pullies to use. I’m not sure what pullies I have pictured above.

By way of your description, you just talked me out of a a Fluidamper. So that’s why I wouldn’t run one due to the need to run special pullies, the way you worded it. I need to run old pullies w/a new style water pump. That just sounds weird to me.

Hard to see things in your second picture.
I’m not understanding what I see in the first besides a thick & thin damper.