Here are the specs on the modern GM 30-30
Solid, outstanding power & modern tight lash with the exhaust of the GM 30-30 cam
lash> in/.012" ex/.012"
rpm>2300 to 6900
ad dur> 284/291
@ .050"> 247/254
lift> in/.504" ex/.498
lobe sep> 112
Like Max said, a cam will "come in" sooner with more cubes. This cam should run 2-2100 thru 66-6700. I once had a cam similar to this in a GN. I loved the sound and feel of that cam. it would pull strong to over 140mph.