Rough conversion (assumes fuel pressure is constant, usually 43.5 psi):
lbs./hour = cc per minute × .0952
1,400cc = 133 lbs./hr.
cc per minute = lbs/ per hour × 10.5
19 lbs./hour = 200cc
Yes, that's for peak power, the BSFC determining the duty cycle (80% suggested max) will vary from .50 for NA (probably close to the usual 12.5-13:1 A/F) to .65 for turbo (9.6-10:1 A/F, extra fuel for cooling and knock suppression).
The problem:
1. too small = lean-out and destruction
2. above 85% sustained the injector will fail
3. too large, the injectors will drool and not respond linear to low speed signals, idle quality suffers.
