[gumby79]

You realy need the BSFC line to get an accurate guss from the Dino. I say guss becuse the dino run is at max fule making the info only accurate at full throttle. In over the road trucks more time at a medium acceleration takes more fule than a short time at medium-high(not max) rate acceleration to reach hi gear (low fule consumption /rpm) . Shifting too soon is bad to as this bogs the motor and takes more fule/time than if the same rate of acceleration in the correct gear slection. Early shifting will make your emissions equipment work harder as well. There are 2 ways to make boost. 1 shear rpm/cfm. 2 fule. At high rpm (read 60mph top gear) the air flow is sufficient to make boost. At low rpm cfm is to low to make boost so boost is made from over fueling.
Try shifting plus or minus 50-250 of were HPand TQ curves cross about 2200rpm for you and 2115rpm tor the modded rig. This x marks the spot to start and adjust to preference. In the '60s this x was the spot that yealded the best engen life and usually best economy.