Crank Balancing Question

[DirtKing]

i had my scat 351 crank balanced for my 50 oz fluidamper (off my 302)....they did drill out a considerable amount of metal, but nothing that would weaken the crank...nor does it look like swiss cheese. Actually, i consider it a bonus (less rotating mass). HOWEVER, what concerns me is the machinist stating that the "damper is throwing the balance out of whack". Cranks are available in zero balance, 28 oz and 50 oz.. What damper you pick will affect how much work goes into the balance, but any COMPETANT shop should have no problem balancing any of these combinations. (My shop charged me 200 bucks. They also used some heavy metal.) By the way, they also balanced my pressure plate after balancing the crank.