General Topics for configuring, operating and tuning the Megajolt. Also see the <a href="http://www.autosportlabs.net/MJLJ_V4_Operation_Guide">Operation Guide</a>
Without carefully and accurately working out exactly what vacuum level is produced at exactly what throttle openins, it's a tough call. However, there's nothing to stop you throwing the TPS on then driving around and adjusting the TPS calibration until you're happy.