Are these the newer style (heart shaped chambers)?
If you can remove your headers, and look in the ex. ports you will see a fuel trail on the floor of the port. If it's wide, like more than 3/8" then the cam is wasting too much intake charge out the exhaust.

With that compression you really need a MW port. Even at altitude!
Try lashing the cam hard, like .035 hot and see if it picks up any e.t. or mph.
I think your intake tract is too small for what your doing and the cam is a bit wrong, but not horrible.
Brian