Like Rob already said, go with the Crane. There's a lot more to a camshaft than what's printed in a catalog, and the guys here have tried just about every cam under the sun on these HP BBC's and keep going back to the 143.
Look at how Rob's Camaro performs with a 143 cam.
https://www.youtube.com/watch?v=2E-bPTq7UYw
That should tell you why. [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]