2 cylinder lawn mower with OEM fuel injection

[Automate]

Looking to put a uaEFI on a 2 cylinder engine with OEM fuel injection running a garden tractor.

Requirements are quite different than typical automotive engine.

90 dev V twin OEM fuel injection
Magnet on flywheel and spark coil for each cylinder
OEM ECU gets engine speed from spark coil
OEM ECU only has three sensors:
MAP
Air temperature
Water temperature

Runs at set speeds, so throttle response not important
No OEM throttle position sensor
3550 max RPMs, so no spark advance
Has mechanical governor to maintain RPMs
No OEM O2 sensor, open loop
Two fuel injectors and fuel pump are the only outputs from OEM ECU

Can uaEFI be tuned without adding throttle position sensor?