Idle bypass air is used to lower the throttle angle to prevent nozzle drip. If you have full control of idle A/F with the mixture screws, and no nozzle drip, then no additional bypass air is needed.
A lack of idle fuel will require the throttle plates to be open further to sustain the engine, so it will pull some fuel from the boosters.
This can be difficult to evaluate when testing. A good way to find out is to get it idling the best that you can, and look into the carb to see if any fuel is coming from the boosters. If it is, you can tip the choke flap in slightly or gently put your hand over the choke horn to see if the engine smooths out, and speeds up some. If it does, you need more idle fuel, which will allow the throttle plates to be closed more, and get the carb back on the idle system.
Those are also pretty lean metering rods for what you are doing, and very limited control of the A/F at part throttle. I'd install a different primary metering rod.
If you didn't get one yet, I'd also install one of our accl pump assemblies as well, they have a custom seal on the pump that will hold up in this new fuel. The "blue" seals on the over the counter stuff will fail, and the "high performance" pump Edelbrock sells is a complete POS.....IMHO.....Cliff
