less on the crank n more on the blower , this dyers set up needed a know front bearing support plate . and its just a 6 71 . i know a vintage top fuel blower guy in waterloo iowa , rudy petra r & p blowers . call him tell him what your doing . lesson to what he says . he's retired in his 70's and sharp as a raiser hot rod racer i think he's still running a 324 olds with 6 71 on the street . he might give you his thoughts on the set up .
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