I'm swapping a 95 gsr in my OBD I 92 teg. What I was told is that I could remove these secondary intake buterflies. Is this better. I was also told that only a OBD1 P72 will work with this intake manifold but if they were removed i can use others P28 etc. Please help. I also got a jdm tranny with A1 on the sticker is this the right tranny?....i still need an ecu so i'm wondering what would be the best route....will a B16 intake manifold fit?