Camshaft identification

.The few I have are here  http://atlanticgreen.com/camsurvey.htm

.If you are in the US. email me! I could profile it for you.

That is a Dunstall cam that requires to be mated to 3" radiused cam followers.

look at post #7 on this thread for tappet clearances and timing. To see the pictures with the info you will need chrome or firefox with the photobucket fix extensions installed and enabled.

https://www.accessnorton.com/NortonCommando/need-info-on-dunstall-810-wec-r-540-camshaft.6924/

If you learn cam profiles and how they function, you will see the R2 cam with radiused lifters will yeild almost a 2S combat cam. It is almost amazing this dunstall cam profile  was before the combat and as if norton copied it and left off the radiused lifers which truncates the profile and in so doing makes the overlap almost identical to the combat without the need for the complicating radiused lifters. You can buy from norvil the original single chain 2S or a 2S profile on a early twin chain core. I have an atlas engine and the norvil twin chain 2S to build a "combat" spec atlas. 

I have a selection of cams bought off of you know where. I have a very bumpy looking one which even Les Emery could not identify. It looks a bit like a Triumph E3134 profile, which I thought Mr. Dunstall copied at one time. Every camshaft I have looks different, so do a lot of followers. Is there any where where one can get the drawings of each type to measure the profiles against?