I just bought a vintage Peavey Mace VT series 2x12. Am putting new JJ Tesla tubes in it and having the bias checked and set if needed. My question is while this amp has great tone I would like to boost the distortion up more, I really don`t want to run a pedal but more so would like to find some mods that I can do with my slight electronics experience. Any help or point in the right direction would be great.