Anyone with the HKS 272 cams? Have a question...

[mdost03]

Alright, I currently have the new Tial Q BOV and have the 10 psi spring in it which is good for -16 to -19 vacuum. I am now going with the HKS 272 cams and was wondering if anyone knows what kind of vacuum they read so I know what spring to buy for the BOV. Here's the BOV spring rates:

-8 to -11 in/HG use 6 PSI Spring (Black)
-12 to -15 in/HG use 8 PSI Spring (White)
-16 to -19 in/HG use 10 PSI Spring (Silver)
-20 to -21 in/HG use 11 PSI Spring (Purple)

I am thinking I am going to have to go with the white spring, but wanted to make sure. So anyone with the HKS 272 cams, what kind of vacuum to you read? Thanks!