Some 50's would probably bring in some extra mileage. I have heard of better mileage up to 120 horse injectors. I would post this up in the performance section for 2nd gens, you would get more responses from trucks similiar to what you drive.
A forum community dedicated to Dodge Cummins Diesel truck owners and enthusiasts. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!