Went to the Indy swap meet over the weekend and left without grabbing a damper, I'm on ATI's website now which is confusing. Never knew about aluminum shells or steel shells.

Too many choices- anyone here know which ATI damper works for a 512 kit, internally balanced RB that lines up for a stock alternator and water pump pulley?

I was all set to get one from Mancini or 440s, however too many naysayers have scared me to only use an ATI brand and not to use
anything else, (pro race and 440source fluid filled included)

thanks!