hey justinsane666!
i think that most metalheads are probably heavily influenced by the 70's music, which is influenced by the blues, but the big difference is that at first there was the blues, the music with the soul, after that came the hard rock, which was like the blues, but with heavier riffs, and stuff and the solos became faster but still had that blues touch, and then the metal era started, which is might be influenced by the blues, but misses its touch and feel, and overaly mostly about speeding, and heavy distortions