The new race motor is basically done except for front dress and a few things like that. My old "race" engine had a euro dampener on it, but it was broken and is no longer usable.

What do you Z guys run? Should I find another euro unit (they seem to be NLA)? Or just use the stock piece. The stock piece with two pulley groves is quite heavy, but I wonder if it might be better with the long Z crank and quell some vibrational harmonics?

Thanks,
Ron