I did that with the cal that came with the car from FWD and that worked. But with T-SBEC_22_MTX_A415_Daytona-VNT for running E85, it was ok in part-throttle until around 3300-3500 rpms and started to hesitate and buck alittle until 4100 rpms. So after reading this and the other thread, it became clear I needed to run a TI vacuum line setup. So I went with the 90 TI and it doesn't hesitate hardly at all, it will when accelerating, then getting off the gas alittle and then getting back into it around 4000 rpms, but I may need to tweak it a bit. I will definitely make time to install the WB so as not to melt another piston.