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Set the truck weight to 4500 pounds, any option on any motor for the 5000+ setting doesn't show results, frankly i don't know why it's even there. I thought it was busted too.
It's even got a prospective dyno thing that projects your performance. Hot rod magazine tested it on a build they were doing and claimed it was accurate to within 3 horsepower, and the power curves were dead on. Those are the numbers i got from the prospective heads i want to buy, looks mighty pleasin' to me.
What are you putting it in ? That seems very heavy . It's interesting to set it up then change carb size , heads , exhaust or other and see the horse power - torque changes with the same cam .
My F3. Based on the rated max GVW of 6800 pounds, i reckon it's somewhere around 5100 pounds stock, and the 302 and m5r2 is probably heavier than the stock flatty and whatever the hell trans it used to have.
