FiTech EFI system

63belvedere, I can just press my start button and once it starts, no touching of the throttle at all. Runs about 1050 rpm, then works down as it warms up.

Mine likes 13.5 a/f at idle. Runs really roughly at anything over 14.3

I have my idle speed set to 760 rpm. MY idle air counts IAC are 9 in neutral when warm.
(you very lightly adjust the primary butterfly to adjust the IAC. the more closed your butterflies are, the higher your IAC count will be. ( you probably already know that, but just in case.)

I increased the warm up fuel settings Warm up 20F and warmup 65F slightly( i think by 10 )-- cause my winter sucks--- LOL

Your settings close?