FMU calibration recommendation based on most combinations, and may need some adjustment (higher or lower gain) depending on modifications. Vortech does offer an FMU Needle Bleed Assembly (6Z120-010) that enables the ability to bleed of up to 1 point of gain from a Standard FMU calibration (i.e. 8:1 calibration can be bled down to 7.5:1 or 7:1), to help fine tune fuel requirements.
Recommended calibrations for commonly used injector sizes:
12:1 - 19lb./hr Injectors
10:1 - 24lb./hr Injectors (Cobra)
8:1 - 24lb./hr Injectors (GT/LX)
6:1 - 30lb./hr Injectors
4:1 - 38/42lb./hr Injectors
3:1 - 50lb./hr Injectors