getting rotating asembly balanced!

finally getting the assembly balanced! got a scat 9000 4.500 crank new! eagle 6.700 rods je flat top pistons for cj heads, I got the (aluminum motorsport ones ported) for intake valve relief! just wondering about how many slugs you guys used to balance your 4.500 9000 scat crank if you have one! motor will be a 545 bbf experience engine builders welcome!  

Similar combo but was a 557 with same crank, Probe flat tops, H beams. Took 6 slugs. This was before Scat and similar forged cranks were available.

Gonna dyno it?

yea at the track!   thanks for the info!