I don't believe that a dominator will be very efficient on most jet boats. There may be some boats that have high compression and run wide open 1/4 mile drags. If this is not you then, stay away from the dominator. If you use a partial throttle or let off or slow down with a dominator, they tend to load up the motor or make them fat temporarily. The dominator will act like a big 2 barrel at partial throttle. Most dominators have a progressive throttle linkage. This is not ideal for any application other than full throttle. Most engines will respond more efficiently and aggressively with a 4150 style carburetor. If you take the same engine and try both carbs, one would be pleasently surprised.....
The smaller the carb, the greater the venturi affect, the greater the throttle response.
On a second note, my current engine has an 850 Dper' on it and it allowed a 470" motor to spin 7k (in a flattie)......how bout' dem apples?
