Quote: Guys, sorry but I dont understand...do it pulls air in back of scoop then? So I make plate what seals cowl hood inside and let open only that hole what is "beside" windshield? I thoughted that cowl hood is to let hot air out..that cold air enters through grille and leaves through cowl hood
No... there is a negative air pressure at the windshield (more as you get lower to the base), that negative supplies the air to the carb, its better to seal the carb to the scoop (keeps the hot air out of the carb). On a front facing scoop you need to get the inlet up into the air flow... as a rule of thumb... take a string and tape it to the front edge of the hood... tape the other end to the roof line... your scoop opening should be ABOVE that string
