I'm working on sizing injectors for a '88 2.8 V6 MPFI. Does anyone have experience with the max duty cycle when at WOT and redline? My computations show stock 16 lb/hr injectors will be maxed out by the time the engine hits 5000 rpm and 12.6:1 A/F. Also, has anyone correlated the O2 sensor voltage vs. A/F ratio? Thanks, Roger.