Three Harley Davidson Mikuni side draft carbs and some aluminum conduit would be a lot simpler, and MUCH less expensive! They're "constant depression" slide type carbs with a vacuum diaphragm, and they adjust the venturi size and mixture to the volume of fuel and air the engine demands over a wide range of RPM and throttle openings.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!