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  1. astra mk3 c20let tuning , problems,and advice

    Engines and Transmission
    hi im new here and having some trouble with my Astra i just did a gasket (cometic 1.9mm) cut 1mm of the head it starts up but with problems takes 40sec - 50sec ignition can't get it fine im sure something is wrong with it. When it starts it reads 13-15 vac butt runs...