What you need to find out is the total engine displacement in liters, and whether the engine has any 02 or AFR sensors in the exhaust. Also, knowing the type of fuel delivery system and whether the car in turbocharged would also help.
1991 Plymouth Acclaim 3L V6.
1 dry cells with nineteen 6"x8" 316L ss plates, driven by constant current PWM set at 35 amps (13.3V at PWM). 28% KOH electrolyte. Total measured output 2.5 lpm. Mileage went from 18 to 26 mpg, all city driving (44% increase). EFIE set at .370 and I still need to play with ignition timing.