Is this my lucky day or am i screwed

[dave66dart]

When tearing down the 225 from my 65 valiant not running marked .030 on the valve cover, anyway when tearing it down I find the cam that I was wanting it is stamped 264s10, and looks good. But the other 225 cam is stamped 252s. Can Anyone Help please I am LOST.

 

[66aCUDA]

Im not familiar with the s10 unless the cam bearings are .010 over.
How ever the 264 is a little hotter than the 254 (which is basicly stock).
Still a Small cam by any standards.
I would mic the cams and see if there is any difference.
Frank