What's the rpm limit with hv pump

I have a milodon single line external pick up and hv pump and the 9 quart super stock pan .
Milodon says that set up is good for 7k rpm.
Is that a fact or is that a sales strategy to scare me into buying the next step up ?
I'd hate to find out the hard way and I don't think my engine will see 7k and if it does it will be towards the end of the 1/4 mile.
Anyone have any experience with this?