Ford FE Romac balancer P/N 0219SA
 

First time posting. Was wondering if anyone has used one on a 390 FE. Would save me the time with measuring. Will a stock 428 or March single or double groove crank pulley work? The two stock pulleys that I have are 3 groove. I know these will not work. Even contacted Romac they had no answer. Thanks FE Dave.