Originally Posted by
fmc400
If you've ripped out EGR, it will account for some mileage loss. Also, a 4-barrel is more efficient in theory, but it does need to be carefully tuned to realize better mileage (not saying you haven't already). Given the factors, it's not surprising to me that people with completely stock trucks are realizing better mileage. Also, "babying it" is really hard to define.
What I mean by baby it is no aggressive starts, no getting into the secondaries. I did however play with the jets in the carb and was loving the extra power but could not afford the fuel loss because it would go fast, so I put everything back to the "economy" setup. And ya the egr has been long gone.