2bbl to 4bbl conversion?

96.2% of everything I know about automobiles is that it sounds faster.. And my fastest vehicle only has 3 cylinders so I probably don't know squat!
I had a 3-cylinder once.
A 1975 GT750 Suzuki 2-stroke motorcycle; affectionately called a WaterBuffalo, because it was liquid cooled and weighed about 7000 pounds. Great motorcycle, unkilleable. In it's time, for 70hp, it was pretty quick..... in a straight line .......... at sealevel. Or at least on level ground. Climbing mountains, I had to downshift twice getting up the Crowsnest Pass as the CV carbs couldn't keep the needles up. But man did it fly on the Prairies.
Two years later it became obsolete when Suzuki introduced the 750 4 cylinder 4-stroke. And a year after that the GS1000cc at just 6 pounds heavier than the 750. After I got that 1000, I quit buying new motorcycles. What a machine. It wasn't particularly great at any one thing; but it was really great at everything.