Question for the EFI crowd (1 Viewer)

[Its me shaneus]

Running the FI Tech 2bbl setup and still have a lot of tuning. Ran ok in warm weather (not as good as holley 2300-350 cfm), but close.

Now cold weather has come and its hard starting. So i turn up crank and after start fuel at at cold temps from 0 to 10. Did not change primary fuel (this is the number all adjustments are pegged to).

Starts now but has fouled a plug.

I can play around with richer or leaner for starup and after start for different temps. But overall wondering if I should lower primary fuel to shoot for leaner ( (14/1) warm running ratio first, and then adjust to make the beast start when it gets cold.

Whats a good AFR for a healthy 2F?

 

[B y r o n]

Explanation of Air Fuel Ratio.

 

[Its me shaneus]

Left out some info I should’ve included.. The fi tech EFI has the user pick a target AFR. Default is 13.6/1. It will vary this based on input from sensors as to engine rpm, vacuum, air temp etc.

My question was more to those running EFI as to how lean they have been able to set target AFR before having issues.

 

[B y r o n]

I have my Edelbrock EFI set at 14.7:1 with learning enabled and no issues, it is on a 350 SBC.