Looking for a race quality non fluid dampener

TurboGLH said
Not advocating for any in particular, but be sure to read the install notes for the innovators west and ATI dampers.

ATI implies you can get a stock setup to line up, with just the right mix of hub and ring, but otherwise no go.

Innovators west says, I think, it will work with 69 earlier, but not 70+. I don't know how else to interpret

"Stock bolt pattern and spacing for 340 Mopar with Steel Crank. Internally balanced only. Will fit cast crank 340 and 360 but will not have stock spacing."

Stock like bonded dampers and the new design fluidampr do line up, old man is talking about the original design with the flat face.

All factory Dampers on LA engines have the same spacing from the snout of the crank to pulley bolt surface. It is the water pump that is different . The cast iron pump being a shorter distance from the face of the block. Thus the reason for the shorter crank pulley. Even the external balance crank dampers that are weighted have the same bolt surface distance from the snout. .