Looking for a race quality non fluid dampener

rumblefish360 said
How are they on there thickness? I will need to get a new balancer for a couple of race mills in the works and the pulley alignment can be a PIA when the damper is thicker.

I’m working on a 318 & 2-340’s.

I used March 6 rib pulleys. No belt alignment issues. The dampener is just about an inch thick.