Edelbrock heads and cam break in

you most likely will not be able to use a vacume advance with that cam either. ( I talked to a tech. at Lunatti about this) I messed around with mine but it never really worked correctly with the lower amount of manifold vacume. I eliminated the vacume and modified my distributer to use all mechanical advance. Mines at 36 degrees total, and all in at 2000 rpm.