[naz]

if you got your stock MAF flow bench tested and you know the CFM of air for all the output values and you made your own circuit so you knew exactly what the transfer function was.. then yes i agree it would be a lot cheaper than getting a recalibrated MAF

but i'm thinking.. what is the cost of getting the MAF flow benched.. and you also get some performance gain from getting the larger diameter MAF too.. so that should be factored into the cost equation

as for that ford MAF v. proM MAF.. i'm not so sure its a big deal.. if you have a flow bench test sheet for both then what is the difference? i think its more like.. we already have flow bench sheets for the standard ford MAFs and we don't want to do any more work recalculating anything

on an off topic note.. proM wants to know what size injectors you are going to be using with the MAF.. and that seems to affect how they calibrate it. no clue how or why though. i'm thinking that gives them a rough idea of your HP needs so they scale the airflow into the 0-5V range properly

i thought you got all your gear for free man? what's the deal.. spending $$ to fix up mistakes they made and stuff? or are you just bitten hard by the mod bug and upgrading everything all in one shot :)