been trying to get ready for the friday night test & tune,and been experiencing some carb problems,originally had a 3310-1 780 and can't get idle,due to the carb setting(needs rebuilt/cleaned) so got a loaner carb,was told its an 850,only casting numbers is 4553,,anyways, has 82's in front and 83 in back and is way 2 FAT,is 72's too far down to jet?can anyone help on identification of it?


this is a experimental spare parts experience