I would have it done by a good shop There are two different weights involve in rotating assembly, the individual and total weights of each reciprocating and rotating parts and the rotational weights of the components, this is probably not the correct terms to describe what I mean but if you don't own or have access to a good automotive balancing machine have a good shop balance the rotating assembly for you
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)