Got the Perrin Modifieds back in from RC today. Figured id post up the results for any potential buyers... Before Cleaning. #1 778.cc (YIKES) Fair (Spray Pattern) #2 794.cc Good #3 797.cc Good #4 785 cc Fair High:797 Low:778 Avg:788.5 System Balance: %2.4 Percent HP at Duty Cycle 80% BFSC=.65=369.7(Turbo Car BFSC)/ .55=436.9 / .50 480.6hp ==================================================== After Cleaning #1 798.cc(whew) Excellent #2 802.cc Excellent #3 804.cc Excellent #4 799.cc Excellent High 804 Low 798 Avg:800.8 cc System Balance 0.8% HP at Duty Cycle 80% BFSC=.65=375.4(Turbo Car BFSC)/ .55=443.7 / .50 480.6hp ======================================== So I guess mod an injector, pay the cash to get it cleaned at a nice shop like RC Engineering, great turn around. Anyways they are in and ready to rock! Not bad $100 to test, $200 to Mod.