master cyl mount-pedal assembly

Hey Im new,Im doing a 36 ford sedan brake update.I put discs on the front,2x12 drums on the rear.My question is what pedals work with the stock crossmember, stock 3spd trans,stock v8 flathead.I would like to keep mastercylinder under floor like stock.Thanks for any help.Snazzy56

 

Welcome to the hamb from st louis....Just use the stock pedal ...I think speedway sells an adapter to mount the mastercylinder