You ran 10.3 with out of the box e-heads? What is the total price difference between the out of the box e-head motor and your current CV-1 10.1X hydraulic roller setup? The CV-1's are capable of much more. Why go with a much more expensive CV-1 setup, when a out of the box e-head will go 10.3? After all, this isn't an "all out race motor," so why worry about a couple tenths? You could have a good down payment on a nice paint job with the extra cost to go a couple tenths quicker.