ZL-1 & L-88 head design clarification

[nuch_ss396]

Hi Mark,

Well, thats goes with what I have often heard about the
'074 heads. Only question I have about them is this:
If there were so few L-88's and even fewer ZL-1's, why are
so many of these heads on ebay all the time. I see 3 - 4
sets per month on average. There aren't that many real
cars, so where did all the heads come from? Over the
counter race stuff? More to the point, are they over the
counter race stuff that really didn't work and have been
collecting dust forever?

Steve