When i say "arrow" rods, im just using the term completely incorrectly im afraid mate, i just mean steel rods, its like when i say "hoover" meaning a vacuum cleaner, or "coke" meaning cola.
Any make of ford rods will be fine, must admit im not sure where arrow are made.
But carillo or similar is fine to, or seinz ones which i believe are cheap over there?
As for the nitrous thing, american kits are very well established in america, and the way in which they use them tends to mask a lot of the problems.
Just wait till next year though and see what my friend Johnny Barb is doing over there with his car, he's only running 6.5 at the moment, against top guys running 6.10 but its very much still being developed