So I've picked up new plugs and installed them and now I have a couple days till I go for a retest.

This might not be right section for the second question I have but both have to do with my test.

I have a maft setup that I've been waiting to install, if I installed this and had a set for my cars settings would it affect the etest in terms of helping it?
My second question is about the throttle body, I have a n/t one that came with me maft setup; the gm maf attached to piping which is then attached to the throttle body. Using this setup would be much easier then having to cut my current uicp. The n/t throttle body only has 3 vacuum lines on the top as compared to the turbo one with the 4th coming on a angle? If I was to put the n/t on what should be done with that 4th line?