So I have a 2004 5.7 Hemi and have decided to get a new throttle body. I have BBK shorty headers, megnaflow catback exhaust, K&N CAI and once I get the TB I'm getting a tune from Hemifever tuning. This will probably be the last mod I do. So which TB would be better for me? The 85 or 87? Also I want to keep as much low end torque as possible.