figured you you push for 4cyl DOMESTIC product over an import...
not about fuel economy... i just don't believe that stock for stock
a 440 vs 340 or even the Hi-Perf 360's (which has all the go fast 340 parts)
get the same fuel economy.
You don't have to believe it, but it is a fact IN MY CASE. I have owned my GTS convertible since 1983. With the fuel of the 80s it got a best of 17mpg on the highway. With the fuel of the 90s-today it is worse. I put the first 440/4sp Dart on the road in late 1997. Same highway mileage as the GTS. Those are just the facts. We have garbage reformulated fuel here in California that is DOCUMENTED to reduce fuel economy. Just the way it is.