^^^ That jogged a memory of a conversation I had with John at "the carburetor shop" who lives/breathes carbs & he said nitro floats give more control & are lighter & to beware of overseas brass floats cuz the solder is substandard & can fail. He did mention something about ethanol but since I ain't running it I did not write it down (& dont remember it). This was regarding a circle track Rochester 2bbl FWIW.