You are correct about no pressure regulator, however, there is a fuel pressure sensor that feeds info to the PCM that does have a red vac line attached to the bottom of it.
-Adam-
2k Silver Frost #939 - 36K Miles
H&R + Koni + Mirko + Elky Mesh + Hella Optilux + K&N + LoTek + Mille Miglia EVO 17" + ADC T-28 Turbo + Magnaflow 3" S.S. + exhaust leaks + CEL light + more to come...
