pushrod length ?

Does anyone know what the pushrod length should be for a stock block and stock heads with a b cam and non adjustable 1.6 rockers. Thanks for the help

Stock length is 6.272 from what i have read? I have had problem after problem with this car. Some body else built it and i bought it assemble and have had problem after problem. . He told me they did mill the heads but cant tell me how much. The pushrods he put in it are to long i know that for sure but i dont know what he used, this has been such a nightmare.......