Without overthinking things, it's true ... with enough time and money a mountain of recycled aluminum cans could be turned into a supersonic jet fighter.

On the money side of things, I think leveraging a factory flex fuel system is a modestly affordable option. My plan for flex fuel would not use TBI, I would opt for TPI instead. I would update the TPI engine to OBD2, using parts from EFI Connection https://www.eficonnection.com/home/c...x-product-line

Ok, with the 24x system installed on the TPI engine using a factory LSx computer, it's a downhill slide to configure a factory LSx flex fuel system to a TPI engine.

The 24x system uses the coil on plug ignition system, so programmable timing to a maximum of 60 degrees of dwell is available.

Why TPI not TBI, most LSx computers are running engines with 8 injectors.

The 24x system allows using OBD2 tuning software from EFI Live or HP Tuners.

dave w