How much power you trying to make with $2550+ in your heads?
Why not just run Brian's RHS heads and save at least $1,000?
That's another problem
Some guys like myself just want some extra "grunt" around town or when he's trying to pull a stump across a few acres.
Different uses of the motor will give you different budgets
I'm also building a torquey "work truck" motor not a quarter-miler.