I don't know about you guys, but I'm sick of the price of petrol going up. So I finally decided to take the plunge and install LPG on the VY until..... I rang Holdens and the RAA in Adelaide, and they have advised me that it's in my best interest not to install the LPG because it will lead to valve guide problems. Now hang on, I'm going to install the IMPCO system that has it's own Holden Part Number and is the same system that was installed to the VY's from the factory.....No still that will not make a difference, you will still burn out your head. So the question I ask...has anybody heard about this or even better can someone who has installed LPG to their VY help me out????