I have been thinking about getting the heads ported and intake manifolds but then I was wondering...how will mods effect my gas mileage? Its a everyday driver and I dont wanna kill it. Anyone wanna give me a idea about the mods you have and the gas mileage you are getting?
I get like 13mpg wai and no muffler but I need a tune up bad!!!! But don't care not paying someone to do it. Also when get back to working doing a engine swap 300+ hp and will be in the 20s for mpg