Thank you very much...and I'm not worried about the manifolds cracking...I edited the last post before I saw your response (guess we're both on now)...but I'll most likely be making a custom header because of the vehicle application and other reasons.

Haha, Zedd...nifty.

Thanks man.

Yeah, its waaaaaaaay past my bedtime (I usually conk out around 6am. )

Take a look at jet-hot. I've been quoted around $150 for a cast-iron OM617 manifold.