Sure. My 4" engines start with a wet flowed 870. the one on the stand now will idle with a little romp at 800rpm. I forgot who it was but somebody said the larger the carb the faster the car went when talking about a race 410 on the track. It's the truth. But try to get that 1050 to idle clean and transition to part throttle smoothly...lol
The reason the carb size is important has to do with the reaction of the fuel to the air flowing thru the carb. The signals created by that motion are what makes any carb work. When the airflow is impeded the least (full throttle) and generated the stongest (mid-high rpms) those signals are strongest and clearest and the results are the best mixture you can get with a carb. I don't think I have a system for choosing anymore...lol.
