2002-2003 have a different cam
This is what we have so for for own 2003 Z06
353.5rhwp/347.0rwtq Stock 43 miles
360.3rwhp/357.1rwtq Stock w/dynotuning in house 325 miles
371.7rwhp/365.6rwtq Blackwing filter, SLP bellows, Kirban shifter, 816 miles Best 60' 1.90, Best ET 12.21, best MPH 116.86
Jon