6176 bb is very streetable and quick spooling 127mph @24lbs with that exact same combo you have. The 6152 journal bearing is not as quick to spool as the 6176 bb on that same combo. Ask me how I know.
We installed 98 camaro rotors and dual piston calipers and bled the system and the brake pedal goes fast to the floor. Anybody experience this before and how did you fix it? 98 regal gs with no prior brake problems. Thanks.