There are a number of gauges now that use transducers, could add a port, and run a gauge during testing, even in the future. When you don't just remove and cap the port.
Unfortunately, the transducers are not inexpensive, but very accurate. Instant readings, and it's possible to even log, if you have a logger. (Without a gauge)
If you don't have a logger, there are some 3rd party inexpensive ones, like the Innovate one:
https://www.summitracing.com/parts/inn-39140
Not sure if the FItech ecu has logging built in, never owned one, maybe someone else can chime in on that.
Logging is great for troubleshooting, and for tracking mods/tunes.
.
__________________
.
1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song:
http://www.youtube.com/watch?v=7zKAS...ature=youtu.be