It looks like the fuel injectors in my 90 3.1 liter Firebird are the same as the ones in my 91 5.7 liter TPI. I have also seen people swapping in aftermarket injectors like Ford Motorsports and Accels. On my LSx car I have used the FMS and Accels.

Can any injector work with the 90 or 91? Or at least the injectors from any 3rd Gen?

Thanks