An AU series one and two MAF is $640 from ford, although it can be purchased elsewhere for around $450, and good luck in finding one second hand.
The C&L/Vortech maf is $542 (from capa)
The GMS/PRO-M maf is$600 (VPW)
Iím also guessing the 80mm maf from a Ford Lincoln would require a unichip or something to change the A/F ratio.
I was after the best maf without any further mods like a chip/reprogramming or FMU.
The AU maf will work with the stock injectors if the connectors/hotwire are changed over (as far as I know).
The GMS unit seems to be calibrated the best but if other injectors are to be used at later date a new maf sensor is required or the old one sent to the USA to be recalibrated.
The vortech unit can change its sample tube to cater for a change in the injector size but the calibration can be a little hit and miss.
I noticed on the C&L website that there 76mm maf sensors have been calibrated with greater accuracy by testing on the dyno.
Does anyone know of a 'flanged' 76mm MAF, seems like the best option if they exist, if so has anyone used or know where to pick one up?
Thanks for the replies...