Big Block Chevy Solid Roller Cam used has a couple of groves in one lobe. This should not affect operation but it is being sold as is. This info is all I know from the numbers on cam 

282 @ 050 506 Lobe Lift 860 w 1.7 

297 @ 050 475 Lobe Lift 807 w 1.7

7/4 swap 110 lobe sep