Quote:
Originally Posted by Dwight Southerland
Limit valve spring pressure. Maybe 120lbs seat, 300 lbs @ .500".
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Best request yet ! I tried to get NHRA to set spring pressures at 150 lbs and 350 lbs open back in 1985. That's the same as a 426 street Hemi and a 440 6 pack if I remember right. It was like talking to a wall !