My 70 cam is timmed at 108. I run 10% over stock also. I would see if you could advance the cam a bit more - say 105 or 106.
My grind has 105 LSA. Engine works good, but could use a little more lug. I don't think that 112 LSA is going to give you what you want.
May want to consider something different. Josh Blackburn or Gary Baker can give you a better cam grind. Rumor is that they worked together developing a cam grind for A/60's.