[slutredgt]

I am thinking of adding a 70mm throttle body and mass air sensor to my basically stock 91. Will I have to calibrate anything to keep it running well with the stock injectors? Will I have to upgrade the stock injectors? Will it make a big difference without upgrading the intake and injectors? Also, I may be putting on lowering springs. Will I have to get adjustable strut mounts to get the allignment right????

 

[Me_and_my_STANG]

As long as you keep the MAF sensor that is calibrated for the 19lb injectors nothing else is needed, you wont need bigger injectors,. Just keep your old sensor and buy the bigger housing. You should get a noticable increase in power, nothin real big but you should be able to tell a difference. By the way when ordering your parts, if you go with the 70mm throttle body go with a 73mm MAF housing. They say its better to have your maf a little bigger than your TB.