What I built my 383 for in the van. Towing 6K behind the 7K van. 383 has loads of torque. Surprises me how much of a grade it has to have in front of it to cause the 4L85E to come out of overdrive even with a 3.73 gear. I could step up to 4.10s, but my future plans include a 6L90E before long. I tried electric fans on it first, had to go back to a good old clutch fan to keep the engine cool, which I was refering to in my comment on the video. Clutch fan keeps the engine right at ~200°F with a 195° thermostat.
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