hay guys...got a old girl here that im rebuilding,1989 80 inch evo with a ev27 cam. carb work and super trap exhaust.heads planed 60 tho..it has a sceaming eagle ig box 32421-85. have been poking around for the timing spec and havnt been able to find any. i have found out that it is a f code timing curve wich is good .. does the vos need to be grounded when setting the timing??? thanks for the help.

 

any one with this combo???