No Idea it might. But I bet your right. At 65 I am at around 2400rpms, And still plenty of power loaded or not. 20mpg is very doable IMO.
Ironloki- For simplicity I would do a 3rz swap from a 1st gen 3rz with the distributor. It seems way simpler to wire and get running right. The power is very comparable to the newer dual coil and quad coil motors. The only difference I can "feel" is my powerband seems smoother and hits about 500rpm earlier then pulls the rest of the way. Mikes seems slightly slower from the start but hits harder around 3000rpm then pulls even harder after I would guess 4200ish. Mine pulls from 2500 up smoother and with as much power. In a race Mike would win, his truck is lighter, and seems pretty dang fast.