LVL 50
Suicune is at Level 40 in HeartGold and SoulSilver.
You cannot get a Suicune level 40. Suicune cannot make eggs, and thus, he cannot be below level 40. No legendaries can be at a level lower than they are found at.
You have to train him like a normal trainer with high level wild pokemon, trainers, and patience
yes
On Cerulean Cape
Where you find Misty.
one and one only
No
oh well its at the island were u get grudon
it is not on route 18
Pokemon HeartGold and SoulSilver.
Suicune does not evolve.