That is a blast from the past! We used to play the absolute livin' hell outta that song "back in the day" - that and "Highway Star", "Day of the Eagle" - all that... man, were those fun!
Verse:
Pound on F# and E relentlessly (with periodic triplet-ish fill notes)
Triplet-trot on 8va E
Pound on F# and E relentlessly
Chorus:
A (dadadump dadadump - triplets) etc...
B (see above) A A G
G (see above, above) A
B (you get the idea...)
And - I may have forgotten a bridge - but I think that's about it...
Fun song!