351 Cleveland Oil Restrictors - 351C Oiling Fix

Dale Johnson wants the Lowdown on Ford 351 Cleveland Oil Restrictors.Dale Asks:

I'm a little confused about how and when to install oil restrictors on a Ford 351C block. The last time this was referenced (Pit Stop, May '11), you recommended installing oil restrictors in all five main saddles. Moroso has a Ford Cleveland oil restrictor kit (PN 22050) that comes with five plugs: four small (1/4 inch) and one large (5/16 inch). The kit instructions say not to modify the No. 1 main saddle and put the large plug in the No. 5 saddle. Moroso also says "Do not use this kit with hydraulic cams." Should I buy two kits so I have enough plugs for all the saddles, follow the kit instructions, or not install any plugs at all? I have a hydraulic cam with 0.560-inch lift.

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