Kind of reminds of this time I was helping a friend build his 2.7 for his 914. We had finished upgrading it with an Electromotive setup and PMO throttle bodies and while I loaded the base profile Dave spoke with Electromotive for some final advice. The advice was "turn on the key and let the fuel pressure come up. Shut it off and fix your fuel leaks."
Owning a Boxster is similar except its fire it up and let it warm up. Shut it down and fix your vacuum leaks.