hi sir GH. ako ung nagpaconvert ng type z honda city. i just had my EROOM kit retuned kahapon. ano pa kaya kelangan kong gawin. their mechanic said, ung simota air filter ko raw ung culprit. mas malakas daw higop ng hangin so kelangan magcompensate ung feed ng LPG para raw stable? could this assumption be true? parang wala tuloy akong tiwala sa mechanic nila. i badly need your advice. would changing my spark plugs help?