bosch platinum plugs are a scam. replace them immediately with the ngk BPR7ES, more details here;
http://forums.pelicanparts.com/showthread.php?s=&threadid=231731&highlight=ngk+pl atinum
clewett engineering's wires are good, but not the first version. a local 951 owner had the first ones, and broke the connection at the spark plug boot. he contacted clewett and received the version2 plug wires for no charge. make sure you have the version2 wires for a solid connection.
how did you 'rebuild' the injectors? the stock bosch injectors are a sealed unit and not rebuild-able. and how did you clean them?