340-6 rear carb issue

sounds like I maybe able to remove needle & seat on car ? went to Rochester carb school bout 81yrs ago & I remember needle kinda hinged to float. how does what I need to do get done without reaching float ? maybe i'm making bigger deal of it than I should. I remember needing to have fingers on float when playing with needle & I wont be able to see or touch float without disassemble. school me.
mike
WOW no offense but your old as dirt...you prob forgot most