Looking for a race quality non fluid dampener

Fluid damper 4500 rpm @ 80 steady on the highway . 456's with 28" tires 5500 stall . 8000 shifts all day long on the street and at the track. Expensive but well worth the investment. Like I said they were made to run 69 and back pulley on 70 up cars for belt alignment and under drive.

Steve 105.JPG