What ratio rockers are these ?

Can anyone tell me what ratio these Harlan Sharp rockers are ?I dont see anything stamped on them. Also ,these are Econo W2 heads ,but can anyone tell from the pics about which vintage they are ? Do these look like stock pushrods ? The springs appear to be double springs.Im kinda new to Mopars ,so im trying to figure out what i have.Im gunna be doing a cam and valve spring upgrade soon .Thanks ...

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