...so far so good..and quiet!..the cam I put in davids motor is a 1112r 194-204& ht-969 lifters...it had a 210-205 ruggles(wore slam out)...it still has the break-in springs on it... but it seems VERY responsive!...and its QUIET!...i'm happy with the sealed power cams!...thanks to reds hot air for the tip! later joe