:speaking of high gas prices .. back in 76 during the gas shortage era i had just bought my first pinto .. gas was rationed out so i could not keep getting around in 428 mustangs or 440 six pac bees .. it was kind of silly around me .. you could only buy 5 gallons at a time but you could pull thru the line as many times as needed .. i would get my 5 gallons .. pull off the lot and circle back and get 5 more ..being the conscientious saver i was back then i invested in every over the counter fuel saving device on the market .. my first mod was a header and free flowing exhaust system .. garnered me a cool 15 % increase in fuel mileage .. next i added a free flow air filter element most likely a K& N .. got 10 % with that change .. i added lower friction rear gear and trans lubes and was amazed to get a 20 % rise .. i re jetted the carb and did away with the choke system and got another 20 % jump in mileage .. maintaining the correct the tire pressure got me 5 % . i started using fuel additives and stretched a gallon by 15 more % ,, i switched to pertronics electric ignition and opened up the spark plug gap and got the biggest jump of all fully a 25 % increase .. even before it was a common thang i would turn off my cat at stop signs ,, 5 % ,, all that added up to a 115 % increase in fuel mileage .. to my surprise every week i had to drain a gallon and a half out of my tank ,,