Stock 98 Camaro 3800 II Throttle Body -- 554.3 cfm
Stock 3800 vin L throttle body w/ screen -- 419.1 cfm
Stock 3800 vin L throttle body w/o screen -- 444.8 cfm

In-Tank Fuel Pump Flow Rates
92 Buick Ultra 3800 Supercharged High Volume AC Delco EP311
36.6 Gallons Per Hour @ 43.5 PSI
25.8 Gallons Per Hour @ 60.0 PSI

Walbro 307 In-tank (86-92 GM high-performance replacement)
255 liters per hour (67.3 gal/hr) @ 70.0 PSI


Injector Flow Rates (@ 43.5 psi)

3800 vin C injectors -- 19.0 lb/hr
3800 vin L injectors -- 21.2 lb/hr
3800 SC vin 1 injectors -- 29.0 lb/hr
3800 Series 2 (non SC) Rochester 17103146 injectors -- 21.2 lb/hr
3800 Series 2 (non SC) Bosch 0280150973 injectors -- 21.2 lb/hr
1996-up 3800 Series II Supercharged (white LS1-style) -- 36 lb/hr