lifter preload w/adjustable rockers

RustyRatRod said

I always follow what the lifter maker says.....BUT the general consensus is that hydraulic rollers benefit from heavier preload.

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The lifters in the roller engine I build said 1/2-1 1/4 turn preload, so I put 3/4 in it.

OP has stock lifters, so I'm imaging the heavier preload may be the way to go.