Since Edelbrock owns Comp Cams, you can pretty much bet it's ground by Comp Cams. But I've never used one.
One side note that I'll throw in here: I've sold a couple hundred cams in the past year or so and not one single one of them has been on a 110 LSA. The 110 LSA is about as universal as it gets, in an attempt to find a cam that would kind hit the high spots of a bunch of different engines. With the onset of higher performing cylinder heads that don't need as much overlap, the correct camshaft for a lot of applications will be 113-114-115 LSA. On some factory headed applications, I'll either be on the higher side of 110 for some mild applications, or to make the old factory iron sit up and talk, I'll be on the lower end (106-107-108-109). I did two FE's in the past several months that even had 116-117 LSAs.
I know that I've also said this 16000 times, but you can't count on the "RPM Range" to be anywhere correct. There are many, many, many variables that play into where a camshaft puts the peaks, including displacement, cylinder head flow, etc. That camshaft may pull to 6500 in a 352-390, but it wouldn't get within 10 miles of 6500 in something like a 482-496.
