My 68' dart had mild 318 w/500cfm and 2.73 ratio and tall tires which got 20 on the freeway til gas got high. Now, destined to be 383 street pounder! The SE Stratus is great with the 3.0 but would shy from the Intrepid. The Avenger R/T is an excellent choice @ 28mpg on the freeway with 3.5HO and CV transmission. Stick with MoPar.