http://www.compcams.com/catalog/152_153.html
35-324-8 XE270HR (270/276,218/224,.544",112lsa)
It's got VERY aggressive lobes (short adv duration), so you'll have more cylinder pressure than you would with the B cam... and it'll be a little meaner than the crane 2031.
Last I checked, they were about $240 for the cam alone.