hi guys fitted a new rocker gasket on the astra (x20xev) today! was all going well till i drove it home and oil sprayed every where and smoke coming from under the bonnet! it feels lot more responsive on throttle cause i cleaned it all up, i cant see where the oil is coming from! if i rev it standing still its fine but as soon as i take it for a drive and give it some there is oil on the rocker cover! its doing my head in :? not sure if i have over tightened it or not enough! bloody car gets on my tits!