70G / Sec under open throttle seems low to me. According to Ford SI, MAF spec range is .7 ~.8V idle, 1.2 ~ 1.4V @ 30MPH, 1.5 ~ 1.9V @ 55MPH. Your .94 @ cruise / under load is low. I say look towards a MAF problem. I would also check injector PW to see if it is... Login to read more.