Cam bearing clocking?

[quick72toy]

I have a Stage 1 block and wanted to change out the cam bearing for the new cam. But I noticed that the new cam does not have a groove in it, I picked upt a bearing set that had a groove on the back side.
I  Need some help trying to figure out how to clock this new bearing with the two oil holes. 
Do I clock it to line up with the block holes, or offset it to direct more oil to the mains, or will that not make any difference because it has a backside groove?
 Pics below show what I have
 Thanks

DSC03904 by quick72toy, on Flickr
 
DSC03909 by quick72toy, on Flickr

DSC03910 by quick72toy, on Flickr

DSC03915 by quick72toy, on Flickr

[Steve Wood]

There was once a lot of discussion on this and a number of means of approaching the problem.  I think Norbs was reengineering the block but then his car is still in the driveway ten years later so I don't know what he did.

TA Performance had this to say about the bearings they supplied but I don't know if it is applicable to your situation or not

http://www.taperformance.com/proddetail.asp?prod=TA_1556

[quick72toy]

I've been looking at a bunch of old post on all the boards, and have found a bunch of methods. None seem to apply to my particular bearing. (Which I'm now suspecting might have been modified. Instructions say to clock 'the' hole to 3.00 o'clock )
I'll have to ask Norbs what he did to his, but then I might be opening Pandora's box lol.
I did have the TA info but thanks for posting.
I either have to confirm that there is actually two holes in the B-12B bearing, and try to clock it so the drivers side feed hole is covered, or get the correct bearing if it is supposed to have only one hole. 

[Just a Six?]

Paul glad to see you found your way over here! 

[quick72toy]

Thanks David,
I'm just getting back into the car stuff again.
Cheers,
Paul