Valve springs

matching retainers-good, so we no longer will assume springs dancing in retainers. 1.550" diameter-good, stock springs are about 1.510", so they should not be dancing in the head pocket much. if the installed height is 1.860", only .015" less than 1.875" which will be 135# seat load-okay for your cam. plenty of clearance with .484" lift to coil bind. looks good to me