Something about which I have often pondered, is whether it is better for the blower to swallow air or spit it, through the carb.
Compared to the tomes about the compression ratios, rocker ratios, bore/stroke ratios, gear ratios, cam profiles and gas flowing for a plethora of engines, so little is written about blowing that I have never read of a comparison.
Leaving aside the added problems of plumbing and carb pressurising, I always seem to go for swallowing because:-
(1) The blower beats up the charge which mixes it and the compression heat enhances evaporation.
(2) Evaporation through the carb lowers the temperature, delivering a greater charge to the blower.
Facts gratefully valued, but opinions also welcome.