Hey all, I swapped bypass valves on my cobra and now it appears to be running lean and is really choppy when holding a steady throttle when cruising down the highway. I went from a bypass valve that I picked up through summit plumbed into the discharge piping that came with the Vortech kit to a Tial bypass valve plumbed into 3" aluminum tubing. Is the bypass valve causing the problem or the fact that I changed all the discharge plumbing???? My boost gauge is showing about 23 on the vacuum at idle and it appears to be idling fine. Don't think I have a vacuum leak, but thought I would mention it. Not sure where its at when cruising down the road. Anyway, my car has been down for about 6 months for a trans swap (yes I drug my feet lol). Should I reload my tune to see if it helps???