man, when i saw the title i thought it was Green Machine Kyuss cover, i luuuuv Kyuss, some time i'll post my band playng some Kyuss cover here..
but the main riff reminds me Hermano - Angry American, band that has john garcia singin former Kyuss singer...
if u hadnt listened to any of this bands, GO LISTEN NOW!!!
the song is awesome, ill keep it here for sure!!!!