The 7747 seems to have less functionality than later computers. It is somewhat harder to tune imo and I have not opted to use one in years. I plan to use a 7427 or 7730 when I put my 4.0 / AX15...

If he's at 85% IDC then the injector is too small. BPC, VE, BARO, CTS correction... all work together to come up with injector "on time." If the BPC is wrong, then during tuning the VE tables will...

Those are factory tables? Is MAP / BARO ratio table actually MAP / BARO in code? Is that the leftmost table, which has entries from 0 to .5? And is that value frequently calculated based on...

Are the TBI flow ratings wrong, or was a different pressure spec'ed for engineering when setting up the calibrations? Did GM / Delco flow them using gasoline or another fluid, such as Stoddard...

Seems easy. But when I use Robert's numbers for the 3.1 from page 1 and work backward the constant works out to something like 906. 1461 / 3 does not equal 906. So maybe not so easy...

That...

Yes. It's when the airflow is equivalent to the point at which the desired AFR requires the injectors to be on full time...
Translation? Run a dyno simulation. Where the predicted HP is equal to...

Say this differently... what are you looking for? The BPC alone won't give you IDC because injector pulsewidth is a function of the air calculation. Are you trying to estimate how much the BPC can...