"boy, this is too much!!!!!"

First appears at 0.44 and passim in "Futuroid" 

Sourced here at 3.48

"Futuroid" is an inspired bit of wordplay that I tried to deploy once when teasing out different ideas of what futurism and futuristic-ness might mean in music. 

Extracted from its original context of meaning,  here "boy, this is too much" works as a comic yelp expressive of Toffler's future shock

"Future? You can't handle the Future"

Other raw materials for the Noise Factory

Now the "I bring you the future, the future" bit - I'm guessing that is the voice of the record's creator? Or a mate? 

But then there's that American old-timer warning that where we're going the country's very wild and dangerous and we'll have to cut through jungle and climb mountains so high they reach above the clouds.... presumably from some Hollywood movie.  

And a stray "watch dis" 

Not forgetting "dubplates playing in the ghetto tonight"

So whosampled doesn't have the full inventory by any means. 

Ah! There is a fuller inventory at Discogs which references a vocal from Johnny Osbourne's "We Gonna Rock It Tonight" and the American male voice being from The Treasure Of The Sierra Madre

"Breakage #4" on the EP is the same song remixed.