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Roller rockerso.k., Hughes makes a nice, but expensive kit. Keep the lift around .500"-525" , with the 1.6 rockers... unless willing to do the usual valve guide/ spring & retainer clearances Hughes 1110 springs, and matching retainers work well here. B.T.W.: ...the Mr.Gasket 1121g .021" head gasket, picks up a couple of tenths over a stock 050"-060" thickness gasket.