IMO< U need 2 things less fuel at an idle and more at part throttle, for the idle circuit, adjust the mixture screws IN till it falls off then back out a 1/4 to a 1/2 turn out, also check float level, if their too high it will make it idle rich too.
With a tunnel ram you dont exactly have alot of signal strength from the motor, so you need to dump a ton fuel in the accelerator pump circuit to over come the sudden rush of air when you open the throttle, I recommend 50cc accelerator pumps on the primaries as I starting point.