I hve a 2000 LS and i just finished putting the turbo on. I bought it used from a guy that was in Superstreet. It came without a fuel pump. I ran it forthe first time today and I have 2 or 3 exhaust leaks by the sound of it, one at the DP and turbine, and one from the cat to the DP. How much performance s this taking away. Also i think im detonating bc when i went full throttle it would be fine until high rpm and then rpms would flutter REALY bad and then they wouldnt move. My plugs arent gapped right yet i dont hve a gapper, i was actually on my way to get one. ANY hel pwold b geatly apprieciated