Re: How to tune Fitech lean to rich spot?
The default numbers for the parameters are in the default V8 calibration file in case you need to write the calibration to the ECU to change back to the defaults before you put it up for sale.
Both the FiTech Go EFI 4 600HP and Go Port systems work for me, and I'm not shy about changing parameter values in mass like a lot of people are. I know what the parameters do though, which is why I made the bold suggestions. Those numbers work for me, but every motor configuration responds differently to the tune.
Most likely there is something off with your install, if you can't make it work. For example, intake leaks, exhaust leaks near the O2 sensor, poor electrical system, failing ignition parts, wrong cam profile, clogged fuel filters, bad or incorrect fuel pump, poor condition of the engine, and the list goes on. A carburetor will run on just about anything. EFI not so much.
'65 Chev El Camino
Edelbrock Pro-Flo 4 MPFI
Global West, QA1, Viking, Wilwood, UMI, ProForged
'68 P-11 Norton