All I have read is debate over the hole in the lifter facing helping or hurting. COMP CAMS makes a lifter design that gets more oil to the lifter without drilling the hole in the lifter face. it has a groove cut in the side to channel oil down from the galley to the lifter. This way you keep a solid face, but the channel will dump oil down.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD 
AND THE PINK JEEP!!!! R.I.P.
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