Building the VE tables for a SD tune
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Originally Posted by SSpdDmon
Find a file from something similar to start from.
Setup your IFR correctly and tune slowly and conservatively. I'm assuming you're going from the 383 to the 402/F1 setups in your sig. If so adjust your displacement per cylinder. Stay out of boost as much as you can until you get a feel for how far off the ve you start with is.