Thorp Air Command - T18.net

Guys,

I have a prop that was used on my plane before the engine and prop change and I am wondering if anyone else in the group has this prop on their O-320 engine? The info on the prop is:
Serial number : 202 87K
Model: 76EM8
Pitch : 68
T.C.No. P4EA

The length is 70 inches. The previous engine was an O-320 (150hp) and the new engine is an IO-320(160 hp with C/S prop. I can't find any information from the previous owner as to how it performed.

Any help would be appreciated.

Jim