can any one come over to mine , i have a mk3 gsi LET.i,ve had the bottom end rebuild and donvaux came over to put the head back on , i,ve now got it up and running but it sound bad ,and i know no one round my way that can help ,, , i,ve tryed drifferent lead and plug , it idol ok , but it runs rought , beer tokens waiting , cheers rich , 07895780029