what cam do I have

I'm doing the lower end on my 47 EL and am curious what cam I have. The only markings are on the face of the gear. At 12:00 is the letter F and at 6:30 is the number 1. Is this a stock cam. If not who made it and what can I expect from it. Bought it in boxes so I"ve never heard it run. Thanks

I tried to post a picture but can't figure out how to do it, any help. CC

[Pa]

Email it to me direct bro. I will put it up for you. Pa vtwinrebuild@yahoo.com

Post your photos at http://www.photobucket.com. Be sure to upload the in LARGE size. Just click the LARGE box. Then post the link that photobucket gives you here. WALLAH!!! photos appear here

1. what's the lobe height?
2. is the base circle undercut?

I thinl I have this picture thing down. CC

I suspect, from the base circle diameter, that this was reground.

I measured the lobe from the highest point to the base at 1.22. CC

Yup - reground. Palmer cites the original 1936-47 lobe as 1.22" tall + reduced base circle = undercut for duration increase.

Summary: you won't know what it it unless you time it with a degree wheel and dial indicator.