Which style cast iron exhaust manifolds for a 60-66

[losthope]

Like the title say Im wondering what style cast iron exhaust manifolds work the best on a 66 c10 with a 350/th350 column auto?rear dump?, mid dump?clearence of mounts and starter?, Ive only have had trucks with headers and Id like to replace my long tube headers that hang below the frame with some cast iron exhaust manifolds that i can have the exhaust tucked up into the frame, im not a big fan of headers and i can pick up some exhaust manifolds cheap....Just need some guidance on which to use?