Damaged crank flange

343...360 with a .090 undersized piston. is there a formula for tacking that weight on the flexplate, ie. 1/2 the weight at 2" as opposed to 100% of weight at 1" (not broken). I could easily make that weight appear on the flex or convertor if there is a formula for 'oz/in' with the 'inch' as the variable.
Exactly... the weight goes down by the same factor that the distance goes up. So if is is 2 Oz at 1" then you would tack on 1 oz at 2" or 2/3 oz at 3" and so on. You'll have the bolt weight missing too.

It is what is called a 'moment'.... weight multiplied by distance. Just keep it constant.