Are Roller Rockers Worth It?

How Much Are 1.6:1 Rockers Worth In Power On A Typical Small-Block Chevy?On a stock 327 Chevy with a 0.447-inch-lift cam, will installing 1.6:1 roller-tip rockers make that much of a difference over the stock 1.5:1 stamped rockers?
Brian Dias, Madera California
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