Hyper pak exhaust manifold value

I'd argue that value or worth of anything varies. HemiSSdart found Mike Sargent who was willing to pay a premium it sounds like. I agree with another poster about a set selling for what I thought was a reasonable cost on Ebay a couple years ago (900-1000 if I remember correctly). A restorer is likely to pay more for an uncut/modified set than those in the OP's photo. Agree with many posters that long tube steel tubular headers are better for max hp on a 170 cid especially at higher RPM's (I routinely shifted mine at 7500) making the hyper pak exhaust manifolds a non-necessity in pure performance terms which could drive down the value some. In the early '90's Galen Goviea (sp?) had a Hyper-pak intake and heavily pitted exhaust setup at a swap meet in Long Beach CA and wanted $1800 then. I'd have paid it then as it was the only one I'd ever seen up until that point except I wanted to eat and pay rent for the next month or five. Find the right buyer at just the right time and sky's the limit but price (worth?) may change drastically if just out in the marketplace where there are other options available that perform better. Think of a buyer who's willing to pay a premium for their old high school car now all restored. Their willingness to pay a premium for that particular car has nothing to do with the value/worth of the vehicle, it is their own sentimentality that they are willing to pay to relive. The point i'm trying to make is that value or worth and sales price are often not the same nor even related.