PWR EFI experience? Little over three years and 15,000 daily driven miles of it in this 930 I've had for 23 years. I have the first system which dates from June 03, did the developmental driving on the stock engine conversion as well as the modified PWR Package Engine version and when the latter was completed in 12/03, I've not cracked the deck lid open accept for 3-4 oil changes since. It is driven hot/cold everwhere rain or shine.
I do his web development (EFI conversion completely outlined here
) and my car is the white one used throughout this site. He generally has 3-4 conversions going at a time so you should have something to ride in when you schedule a visit, or contact him in advance and I'll swing by so he can take you for a.... spin - shall we say - around the block in it.