Fine Tuning a 360 Magnum with a Brawler "Double Pumper"

So after my shift, really the only takeaway I have other than the power and responsiveness I finally have out of this carb is it seems like if I barely have my foot on the throttle it falls on its face, but I’m not entirely sure if it’s the carbs fault or if the amount I’m pressing down the throttle is just letting the slack out of the cable and I’m really at idle and it’s stumbling because I’m letting out the clutch without giving any throttle.

Do you guys usually have slack in your cables or do you leave it nice and tight?