the zl1 in my link is a one off 4th gen project with a 572 donovan big block in it. I'm 100% sure bob mcdorman doesn't own it. I thought it might be fun to build a copy sometime becuase the article gives part numbers for all the off the shelf stuff and specify's where they had to fabricate things.
what i did find is that scince the article has been published I can now purchase a prefabbeb tubular k-member made for a bbc so it cuts down on fab time there are also off the shelf headers and fuel injecton systems availiable cutting down some on the cost.