I am building a 408 small block chevy with blower pistons & h-beam 4340 rods. a blower cam from 2200 to 6000 rpms. i am putting a b@m 144 blower on it. i have AFR 195cc heads & I need to know what carb to put on it. some people told me a 750 some told me a 850 some told me it needs to have 3 circuits in it. I would like some imput on this from some people that have built blower motors please. thanks.