I purchased an 06 GTO that had a holley sniper to run the fuel and a msd LS coil box to control the timing. Car runs great with the TH400 that is in it currently but I want to boost it. The sniper cannot support boost being the throttle body style it is and I am not a big fan of snipers anyway so I want to install a factory LS2 intake setup back on it. I bought a new engine harness and have all the schematics get the car back to "stock" setup. I have an E40 out of my old TBSS, can it be flashed to a manual tune since I am running a turbo 400 or am I better off just leaving it the auto tune and set the tune to "non electric trans"? I want the speedo to work so the auto or manual tune needs a specific reluctor from what I have read, any insight on that would help too?GTO small.jpg