Can I port and polish my stock mass air meter ('89 Mustang GT), or will the mass air meter read falsely if it's modified for more flow (most of the porting would be bringing the diameter out)? I don't really want to pay $200 for a mass air meter i'll probably replace down the road again anyways or if i can get a few horsepower for free.
Thanks,
------------------
'84 Mustang 5.0 LX
my LX
'89 Mustang GT
my GT