trying to find minimum & maximum pulse width?

Hi im trying to find the minimum & maximum pulse width for a fuel injector, so i can do a certain project, I cant find any specs for this injector anywhere,iv searched and searched Google, but still nothing, does anyone know where i might find these specs?, its a VL Commodore Berlina (Australia) Fuel Injector

I want to use a 555 or something to adjust the pulse.

Welll 0 pulse would be no fuel, and always on would be fuel all the time regardless of cylinder position?

Have a look at the megasquirt website, they have some information that might help you.
https://www.megamanual.com/v22manual/mfuel.htm
https://www.megamanual.com/v22manual/minj.htm

Yes thats right, but all the way on is 100% duty cycle and there rated at 80% Max, i dont need to know the exact pulse, just something close, im not sure that if i run the injector,eg: at 100% or even 80% for say 2 seconds if it will damage the injector or shorten the life, im pretty sure they are in the millisecond range all the time, i will have a look at those links, thanks.