For those of you installing bigger injectors and using the stock MAF I think you can adjust for the bigger injectors without changing the housing. A guy I work with has a volkswagon with similar MAF and he adjusted his with a pot when he installed his 30s. His car is running great with no problems. There is no reason why this wouldn't work on ours. Some one would just need to try it. You would need a OBD2 to watch it but it should work. I hope this might help some of us out.
Green 2000 SVT #1166
mods-K&N open air filter & Custom heat shield, Custom y pipe and 30 in resonator,DMD, arm rest heightened
http://www.geocities.com/savinoss/Cars.html other cars-89 sable 197000 miles and still going-Wifes car 99 Mystique V6 5 spd
