At 60mph I am going at least 15mph slower than the slow traffic in Atlanta. Normal cruise speed in the Mercedes diesel is around 85 and to not be dangerous if I am running around 80 I am pushing 2700-2800 rpm's and I don't like pushing the 5.7 that hard all the time. In normal driving...
Just purchased an 86 C20 with 5.7 @ 300 hp backed up by a SM465. 2100 rpm at 60mph and I watch the gas gauge sprint to empty at a high rate of speed. I have been looking into swapping the SM465 for an NV4500 and get lost in the details.
I have a hydraulic clutch on this 2wd truck with 3.42...