We did agree on spec sheets up front. He has contacted me since this post went up, said he's been swamped and I will get the data. I will let you all know how it works out.

That's the power of the forum

I have found that giving bob weights, cam card, piston/rod/crank type and what head work was involved is what most people want. And also any stickers that came with the parts. I never show parts cost though.