...my inclination would be to let it eat a little bit. I wouldn't get carried away with it though...just remember that the more you shift the curve to the right, the more it takes away from power on the left.
Somewhere around a 230-232° @ .050" would work really nice for you. For something that needs to have manners down low, easy tunability, etc, I would skip the huge duration gap between the intake and exhaust and either go for a single pattern cam, or something with just 2-4° split. You don't need it to "hang on" at higher rpms and you're not making up for poor exhaust flow. I'd rather have the lower amount of overlap.