And to finish the story, he blew that motor up to. I don't know if he's performed any forensics to determine exactly how it happened, but I don't think it was the fault of the bottom end.
That discouraging! Looks like making more than 450-500 reliable RWHP with these cars will be a challenge and a half. BUT...450-500 is more than enough! Personally I wouldn't want to settle for less than 425 at the wheels, but for now I can barely afford 300! :p