[RET_COP]

too much duration and I would rather see a 108 to 110 LSA, the 112* plus your duration kills the low end and makes the cam seem bigger for the 427, it's all wrong IMO.
110 advanced to 107 with duration's 240 to 250 would be much better and you'd be making more power in the desired rpm range for that 427.
Unless of course your buzzing it with the right heads and intake, but then, there goes the street manners.