fender amp clones

What is a good amp setting for a nirvana tone?
My rig is: Faded Flying v, fender frontman 212r (the old version), boss ds1, ehx small clone chorus, and dunlop crybaby wah.
I was wondering what would be a good eq setting would be for the amp to get a good nevermind-era nirvana tone.
Ive been experimenting for a while now, and havent had much success. So I wanted to see if anyone has any good suggestions.
distortion obviously.
i got this off ultimate guitar:
Gain: 7
Treble: 7
Mid: 4
Bass: 3
occassionally use chorus.
Vintage Fender Amp Clone “KENTOS AMP” #1 made by Kento Nakamura