I been looking around on the web, and I'm curious about performance parts for inlines. My truck has a 57 235, and I was wondering how much difference it would make to add a 2 or 4 bbl and headers. What kind of difference in horsepower/torque, gas mileage, and highway speed would this make? If this would make significant improvement it would cost considerably less than rebuilding my 283.
Thanks,
GrannyLow