I'm interested in trying to get a b18c5 and eventually modifying the internals. I'm looking at Toda and Skunk 2 parts and I am leaning towards Toda. I live in california and my question is, does anyone know how these parts would do in this hell hole's strict emission testing procedures? And if i can legally run the Toda or Skunk 2 camshafts (w/ necessary parts), what is the highest level I can run as far as Skunk 2 stage 2's or Toda spec b's? Any input wanted because I have no idea about the answer to these questions. Thanx.