[jpnovak]

John, I have not done this exercise with MFI but have done so with EFI. The challenge is getting a clean MAP signal while using ITBs and an aggressive cam. you will need to install a barb on each throat. These will all need to connect together in a ballast tank. I used a section of PVC pipe with end caps as my ballast tank. Back the center with foam to dampen the pulses. Then take a single line off the ballast tank to your MAP sensor for your datalogger.

Without the ballast tank you will get a very choppy signal that will be hard to correlate with throttle openings and such. MAP will change very quickly compared to other parameters.