20s for the Demon - how low can I go? (big wheel haters don't look)

I have to admit I am not too big of a fan of big wheels either. But the more I look at this it is growing on me. :D
From this statement, "I don't want the back much lower than the front. I want to lower the front just to what the torsion bars and headers allow." I would guess you are already lower than you will be in the end unless you go different suspension there as well. I could be wrong though, I am no expert. Sounds like you need to put the front where it's gonna be and work off that. Good luck it is coming along nicely. Two thumbs up here!