Proper fuel system setup + id1000s/1 pump and I go 10s@130+ with e85 in a 3500lb forester... With a large rotated turbo setup
I have plenty of customers running id1000s with 30rs on e85 and trapping 125+ in street cars.
Instead of wasting money on new injectors, properly setup your fuel systems.
Fuel pump wiring is the easiest way to get the right flow of out your injectors.
Fuel pressure, 5psi of pressure makes a HUGE difference, especially when you have injectors that can function at high levels of pressure.
You are not maxing out a set of id1000s unless you are making in the low 500whp range on e85. You are not making anywhere near that with a 20g.