What is this Worth PLEASE

I could go either way, depending on documentation.
WITH- you can't build it for that!
WITHOUT- core mystery motor.

* Then there is the "never spun past 5900"....except once, now it's for sale.
;-)
If in doubt , meet him halfway, or pay his price, but pick it up at his home, so you know where he lives.
great point on the now its for sale. He did try to sell entire engine complete with eddy heads in the ad he says now going a different combination. ran 12.87 at 106 he says