WGFV frequency

[Smeins, Larry]

I'm working on getting a bit more boost out of my 87 5kcst and would like to
know the frequency of the WGFV drive.  I could measure it with a scope or
frequency meter wired in so I could read the frequency while getting boost
but it would be much easier to pick the brain of a knowledgeable individual.
Anyone willing to help with the information?  All inputs much appreciated.

Thanks in advance,

Larry from Loveland, CO