engine cutting out down track after in 3rd gear!

It doesn't seem to miss in the water box. While heating the tires. About the different carb. I just thought about going to it anyways bc I'm going to make it a race only car. I'm going to hook up the fuel gauge and drive it today or tomorrow depending on my back. Might be going to hospital after work. I don't have another dizzy to try. I'm starting to wonder if the rev limiter in the distributor is acting up. If the fuel checks out ok I will check it texts I think. The carb is brand new along with the whole fuel system. Put new tank,sending unit, 3/8 line, never ran without a filter. So I don't think the filters in the carb inlets are clogged but I will check anyways to be sure. I need to check the rear fuel bowl float for proper height. Haven't checked it yet.