They give you a matrix with different percentages to change the settings. Should I go clear to the Rich settings and then see what that does?
I would say that I am feeding close to 100 more cubes than the carb is designed for so I think it would work.
Yes I agree with you, that 1405 is gonna be lean on a 440. I think it will run fine on a 440 but it is gonna need smaller rods and bigger jet's. for sure, imo. I have run the 1405 for 20 years now all around the US. From Pikes peak to Key west. I have tuned that carb a lot. There's nothing wrong with them. Jet it up and I'm sure it will help.
