Those metering rods should be plenty of fuel at WOT for what you are doing, based on that carb number. Even with that said, in any and all cases, I'd tune for best WOT power even if you have to get smaller on the metering rods.
I can custom machine a set to whatever size you want to try.
I'd also make sure that you don't have a fuel delivery issue causing the engine to lean out (low fuel level at full throttle) instead of the metering rods not letting enough fuel to the engine......Cliff