You would also need to add a cam button as you can't use the retaining plate without the stepped nose.

Do you have a cam card for that cam?

Tomz - The photos show the markings on the cam as 3111B/31113B. Here is the Comp Cam Master Catalog - http://www.compcams.com/Technical/Ca...terCatalog.pdf
Go to page 18 for the cam. These are the lobe numbers which you reference to the master catalog indicating the cam spec.
When I called Comp Cams, they informed me what I'm mentioning here. The N8256-08 number off the cam told them it was ground in 2008. I'll make you a great deal on it. Make me a reasonable offer. It is a good forced induction cam. The "B" at the end of the lobe number, they told me is for Big Block.

I went and looked up the lobes as soon as I got the pic.

I'm trying to get Comp to send me some numbers for that cam. A cam card would be very helpful. Send me a PM with what you're thinking is fair for the cam. Thanks!