1200rallycar prety much nailed but u use the gas ring or (dohnut)? when useing a carby with duel fuel but the best economy and performance is produced with straight gas in a turbo set up best way to go is use a throttle body with a donut or a mixer on that. the lpg come from the tank as a liuqid? (this thing got a spell checker?) and passes throu a converter witch is plumbed in to the cooling system as the gas is very cold when it turns from luqid to gas and needs the hot water/coolant (im too lazy for coolant) to keep the converter from turning to a block of ice i will try and get some pics of some set ups on my way to the pub this morning any more questions i will do my best to answer and remember lpg is your friend irs 112 octain there abouts and is enviro friendly :) as for the avatar i cant help it if im a sexy beast of a man lol im thinkin of chaingin it