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Bob Lathrops Modest 351 Windsor

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Using a hydraulic flat-tappet cam with aggressive lobe designs forced Bob and his team to reevaluate the springs that came standard with the AFR heads. A spring with too little pressure might not control the valve and could lead to valve float problems, while too much pressure could lead to excessive friction and a flat cam lobe.
Bob Lathrop's Modest 351 Windsor - Wicked Little Windsor

 Using a hydraulic flat-tappet cam with aggressive lobe designs forced Bob and his team to reevaluate the springs that came standard with the AFR heads. A spring with too little pressure might not control the valve and could lead to valve float problems, while too much pressure could lead to excessive friction and a flat cam lobe.  View Related Article

 

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