Good target AFR for slow acceleration

[vrracing]

Monday night we were going to fatten it up a bit at low load but first we wanted to reset the idle. So we set the ISC and disconnected the BAC, used the idle linkage stop to get the idle to around 775rpm and brought the TPS back to 1v (it was at 1.12 well within spec). Disconnected the ISC and plugged in the. BAC and were happy to see the rpms jump 200 or so when the a/c was turned on.

Then we went out to fatten it up (RTek2 for S5Tii and Zeitronix w/b) and it didnt need it; the transition out of closed loop was fine. The engine will still die if the a/c is on and he lets of the throttle suddenly from 3krpms or so but doesnt if the rpms are around 2k; which suggests we need to crank down on the dashpot (brand new as a couple of years ago).

Thanks for the tips.