Depends on the year model and if it's return or returnless fuel system. I don' know offhand their setups but I said it's doable at max % of the injector. The only problem is wearing the injector out sooner than they should.
I have a fuel rail and injectors off a return contour and the injectors look different from my Cougars returnless-style injectors. Also my Dad's Focus has the same exact injectors as my Cougar.
2000 Rio Red I4 Cougar
200whp & 210wtq at 9psi
254whp & 276wtq with NX 35shot
WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip
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