Hmm...by the look of it.... And I,m guessing as well......looks like 2x 4 barrel Rochester carbies on top of a supercharger per engine..and they are probably the virtually unbreakable 4 bolt main Chevy,s....so why near on 1000 horsepower in something that really only requires 1200cc to get along???? Unless it is to make up for some deficiency in the "rider" (driver?) perhaps???
Mind you ...having ridden a large variety of bikes since I was eleven..I doubt that the adrenalin charge created by even opening the throttles halfway would never be forgotten in a hurry.!!