[justpassntime]

I had a car that had a factory spacer under the carb that had a screen in it. I figured it was there to atomize the fuel. It's probably more the spacer thickness than the honeycomb that has to do with anything. The thicker the spacer the faster the airflow is supposed to be and helps to atomize the fuel better.

You might get better fuel burn with a MSD ignition also. I put one on a Chev 350, didn't do a tune up and never touched the rest of the ignition system. Added the ignition and it did run a lot better and started better too.

I am an old carb guy. I used to rebuild and set up carbs for people at a place I once worked. (Not going to tell you it was an military aircraft hydraulic shop.) Most everyone said they never had to adjust the carb after putting it on the car.