guitar situation?

Gear: - Epiphone sg400 (guitar) - The center of the metal of the boss ml-2 (distortion pedal) - Gorilla gg-25 (amps) - Excellent reverb cushion shock [litteratly vintage] (amps) on * i want to get a sum 41, the tone my chemical romance and greenday. I have the center of the metal of the boss ml-2, but the distortion but it is just 'SA a small "metaly" muscular, I had to convince an area of the metal of the boss mt-2 to get the kind of sum 41, the tone my chemical romance and greenday, but the problem with my current tone could not be the pedal center of the metal ml-2 but could be my cheap practice amps .... What should I do? get a different pedal, or buy another practice amps? ... I have only about $ 170 to spend, I might even sell my center of the metal of the boss ml-2 for approximately another $ 70. So overall I have about $ 240 to spend on a pedal and or on. What should I get to realize that the sum of 41/di tone greenday mcr /? Please help. i don 't know what to buy! thanks for reading! = D i can 't sell the cushion damper reverb-amps excellent (vintage). I have obtained from the inheritence so i 'll feel of really bad if it free.