Its funny I looked for a while and couldn't find one. I put a want add on here and someone contacted me. This one was new in the box with both 4150 and 4500 tops for a very fair price. Since then I have seen several for sale with prices all over the place.

While looking I did come across one plumbed with a nitrous system underneath it, Said it was a Winter's manifold but it looked exactly like the holley but someone had smoothed and polished it. He wanted some pretty crazy money for it and I am a reformed nitrous guy so I didn't need that back in my life lol.