Idle Speed. What makes it right?

This is my setup.
1973 Plymouth Scamp
RB 512ci, 440 source stroker kit with lightweight crankshaft, forged pistons, 10.83 CR. Trick Flow 240 heads, 440 source aluminum rockers 1.5RR, Trick flow single plane intake. Holley super sniper EFI, hyperspark ignition, coil and distributor. TTI 2 inch headers. Hughes 3000 stall converter. 727 transmission with transgo tf2 valve body mods. B&M Quicksilver shifter. Gear vendors overdrive to 8 3/4 rear end with 3.91 gears, braced in back. SS leaf springs. Competition engineering race shocks. Pypes exhaust 3" into 2.5 inch. RacePro mufflers. Mickey Thompson ET street SS Drag radials 255/60-15 27.3 inch) but going to 275/60-15 28.2 inch diameter. Current cam specs 244/252 @ .050”, 282/290 adv, .516”/.537” lift(1.5:1 rocker), 112 sep, .016”/.018” lash, Solid lifter from Oregon Cams.


I finally have the EFI working correctly. Bad O2 sensor. I know that there are many variables as to what is the correct idle speed. My question is, How do you set it? What order do you do it? For example, with EFI, do you set base timing, AFR and then Idle. What do you look for to know that you are correct? Is there a tuning book/recipe? Something like, adjust timing as such until you reach maximum vacuum (just making that up). Then adjust AFR, Then Idle speed. There has to be some verified, validated sequencing to tuning an engine. Not just something that says Mopar RB should be 850 rpms at idle... With each motor being different and unique, What steps and procedures would you do to setup and tune an EFI motor? How do you know that it is right without a DYNO at every step??