[Chas]

Mark,
In post #6 I discussed weights we have. I made a typo on the 9.5 iron bare: it's 213 not 223. We don't weigh longs or shorts but as stated, I'll weigh the complete engine when it comes off the pump and post.
Steve,
I think these heads only had preliminary flow work to establish the valve job and then went straight to the dyno! When I can get Billy to test them, I'll post. Historically, Bill Sr has always put a priority on either the ET or the dyno numbers over flow numbers. He then modified his port or chamber designs if needed based on that data. But currently everybody "shops" flow numbers so we have to play that game too.
Thanks for your interest-will keep you posted.