I've read of it before too Lance and mentioned it here in past threads...supposedly sent to Nurse so a back up ZL1 was handy for Eaton's Can-Am team..
Unconfirmed is the engine was used by Eaton and Nurse sold the car w/ an iron motor?.
I believe Keith Tedford has mentioned here in the past that he saw an iron Copo at Nurse and maybe that the car was wrecked on the street?.
Also this same engine may be one Ed Cunneen found in more recent years???
Nothing to do w/ this subject Lance but did you see this thread from this morning?.
https://www.yenko.net/ubbthreads/showflat...true#Post424753

~ Pete