you all moan about the price of petrol come to sunny old uk "not" and pay between £ 1.29 to £ 1.79 per litre thats £ 6.12 to £ 8.50 per gallon a total in dollars of $9.55 to $13.2 per gallon 80% of which is tax and you think your hard done by !!!! . But there is a way to better fuel economy , seen the idea over 30 years ago on tomorrows world prog bbc 1 , when the us , japan and uk were lookin at reducin the co 2 emmisions and extendin the mileage . the japs came up with a re breather system were the spent exhaust went back thru the carbs to burn again :nea: the us came up with a cat exhaust which only cuts emissions when it reaches 40 c so after 5 mins usually niether of which improved mpg :nea: . the brits at landrover however came up with the simplest idea ........ a spark plug :shock: :shock:the gap on it was one qaurter of an inch so when a charge ran thru it on elec ignition it was not a spark but a flame or multiple sparks this burnt all the availabe fuel in the cylinder completely , result less emmisions plus more mpg .to prove it live on stage they had a v 6 range rover engine on a stand running ,they then turned down the fuel by one qaurter the enginge stalled they then replaced the plugs with the new ones and restarted the engine at the stalled setting it ran . then they reduced the fuel mix so it was was down to just one qaurter of the original it still kept on running :shock: So i tried this with my wing to see if it was just bull i put 2 gas shims on the plugs and opened the gap up to 3 ,16 of an inch i then tuned down the fuel adjusters to 1 and a half and ran the engine it ran !next a took a spare can of fuel strapped to my back and with a full tank of fuel went for a ride out to the lake district and back and then to south stack light house in angelesey and back hme a total of 412 miles and didnt use the spare fuel . filled the tank up at the petrol station 4 gallons exact . meaning i got 100 mpg doin 70 mph average speed on points and condensors,note you run on a weak mixture so it runs hot so you have to put cold runnin plugs in also better coolant in your rad ,have set this up on my present wing and with elec ignition gap at 1,8th inch and i am gettin 60 to 65 mpg and no hot runnin