when I built my motor I bought my induction kit at reher Morrison, a cnc victor, a gary Williams 1050, reversion plate, all bolts and gaskets for 1690$. it was a 3 circuit and when dynoed the dyno operator could not believe how great the fuel cruve was. my boat is a lake boat with a solid roller with 750 lift, I can idle all day and just kick the pedal. could not ask for no better. I am not saying to go with any certain brands, just saying most carb. places can get you one damn near on the money for instance gary Williams is setting me up 2 new carbs for a tunnel ram and they aren't even 100$ more than holley. as far as 2 or 3 circuit I am sure they all have there places but if 2 circuit was best reher Morrison would be using them, I will problay catch hell for that last comment!!!