Valve Spring Pressure

[gmturbo]

I'm wondering what valve springs go with the 206-206
cam that have the correct seat pressure. I noticed the
horsepower starts falling off at 4900rpm as if the springs
are floating. Is there a set of valve springs that can be puchased
that go with this cam? I do not want to shim them .

 

[MSDGN]

Comp Cams recommends the CC 979's...that's what I used with my 206 and my RPM's through the traps are 5200-5300...