bob...Ibought an adapter kit that fiero conversion had on sale. THE kit contains av8 flexplate,as does archies,neither of them has v6 stuff.Thats why my question on balance came from.THE ADAPTER converts bellhousing differences ARCHIE uses a differnt starter and spacer to make up differences .I find nothing onusing flex plate conversion.If my way of explaining things I am sorry.This ts the first forum site that will accept my email information.thanks for help....keep answering Iwill keep asking