Thanks. Yes antique tech = no emissions deletes I suppose. I'm not sure what had been done to the 02 qcsb 4x4 I had, but with very lite throttle it would build 2-4 psi boost and speedometer would just keep climbing without extra pedal. It was straight piped when I bought it in Texas, air box was stock. I suspected something was done to the trans with how effortlessly the truck pulled itself. I got 18mpg pulling a honda civic back home from Texas on a 2 wheel dolly. Through the hills of OK and MO it never came out of overdrive and never struggled to maintain speed. The truck would get you a speeding ticket if you didn't pay attention to the throttle. I sure would like to get my 00 to behave the same way without $10K of mods. Maybe the thing was one of those freaks of assembly???