as stated earlier in the thread, I have 14-15 psi or so at the very max and have seen as much as 4* of knock. I just want to cut them back as much as possible before I get the tune. I have to buy all of the extra parts that are going to be ported and polished, so that I can swap them out with minimal downtime. I dont know if a ported TB or LIM would help me with either of those goals. Someone please step in if I am wrong...