Quote:
Originally Posted by REAL 1
What rpm where NASCAR guys spinning back in 1965? That should tell you what the engineered max is for the FE427 SO w/o Dick Smith's magic and luck.
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From the Ford LeMans 427 MkII program docs. Note references to both NASCAR and LeMans/Daytona in the 6200-6400 range. No value in spinning it over that if the power curve starts falling:
