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Im thinking about putting AFRs on my 347 and im looking for Rocker Arms to go with them so i was wondering what would be the best combo for the arms? and what size of rocker studs will i need? i have a 1989 ford mustang 4cyl to 8cyl swap.
 

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hi I'm chris it would depend what your cam specs and lift are and how high the rpm will be under 6500 a cam with 550 lift 220 duration @ .50 you could use pedestal mount but I would just go with at least 3/8 stud mount then there will be no worries I have and do use the speedmaster ebay 1.6 and 1.7 ratio rocker arms both have served me with no problems both motors see 7000 rpm at track good part is there 150 bucks complete
 
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