I have had the same Fluidampr on three engines and and my current engine is smooth as silk with that 20 year old Fluidampr. Whenever a crankshaft breaks some builders are quick to point the finger at a Fluidampr as the cause just because they don't run them on their engines
Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60