nrsanders

i have a 1998 chevy c1500 5.0l 305 with 112,000 miles on it and im looking at improving my fuel economy, im getting about 15 mpg currently. ive been doing some research and found out i could get a new intake pipe for the votex system cus itll do the same thing that a cold air would do but idk what i should get with that. or if i should get a programmer/chip or something. any thoughts on what i could do? thanks in advance.