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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
if its a 94-95 yes 65mm would be correct. if its a prior to 94 its only a 55mm. you want your maf bigger than or equal to your tb size so if you want to increase your maf you can but if its calibrated now i dont see an issue with it. why do you feel you need a bigger one?
Well the throtle body is a 65mm the sensor is stock, I thought I would need one calibrated for 24 since mine is 19, its a 91 5.0 coupe. Thanks for all the help by the way.