I'm looking at the files in post 169. It appears the tutorial was last updated March 28.
Looking at the calc_pids.txt,...
It appears the displacement() has been replaced w/ 5.669. I'll guess this # is in Liters. True? (5.7L~= 350CuIn)
It wasn't clear to me if the call to displacement() was suppose to work. i.e. Is the call suppose to return a #? Where does this # come from, (PCM, EfiLive)? Is this suppose to work for all OS's, just specific ones? Is this suppose to work for only the latest version of EfiLive? (A manual entry will lead to errors down the road.)

What is the purpose of CALC.LTFT? I don't see it used in any of the other CALC PIDs. So, is it needed?

When there is no air temp PID, can I use DYNAIRTMP= 0.85*IAT+0.15*ECT for any OS? Or will this only work for LS1's? (This is just a best guess equation, right?)