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carb setting for a Marvel-Schebler

Rick C I have a 1963 MF90wr (gas).Has sat for couple years so had the carb cleaned. Now I need to set the idle screw. I don't have a manual so looking for any help. Thanks. Also any assistance in where I might be able to obtain a service/mtce manual??
garymck I don't know what a MF 90 is but my 1963 MF35 manual with that carb says to open the idling-air adjustment 1 to 1-1/4 turns until the engine idles smoothly when warm. Adjust the idling speed screw to 450 rpm. On the main jet, fully close it and then open 1 to 1-1/4 turns. Adjust in 1/16 turns.

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