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You guys must have super stangs because i dont really average more than 20mpg on a tank unless im out on the open highway. Then i get like 27mpg with 4.10's with the top down. But my stang for some reason gets not the greatest city mileage even though i can now use 5th gear @ 35mph.
^ me too, of course I like to get on the gas more now that i have the 4.10's... might be why, most the time its between 19-21 city.
How hard is it to change out the springs with the heads still on the engine? not to jack the thread... I was thinking about stage 2 cms cams this is why