Toda B's for sure mate.
Toda A's are the first spec above ITR
I thought CTR cams were slightly upspec from ITR, but almost equal to Toda A.
I thought SiR II cams were simillar to ITR cams... not 100% on that

But, remember, you have to change valves springs for Toda B's and C's. I recomemend Iskandarian (Isky) valves springs. They released them last week, $120 a set.... I believe the toda springs are more expensive, but Isky's are the shiznit - We ususually use Mugen Valve springs, but not cheap, so Isky's are the next best.

I am sure Adrian can be more specific, there is only so much you can get off the net

And B18's are not "better".. what a stupid thing to say to a man who has spent - a long time - waiting for his car to be finished.... inconsiderate p