Yeh I agree with Forrest.
its all in tuning.. you need to be more patient.
the lean spike on throttle tip in can be fixed with "MAP dot or TPS" tuning.
once the car warms up, it jumps out of "warm-up mode" which enrichens the fuel. Best thing to do is tune while all warmed up. Then wait for it to cool down, start up the car and adjust the "enrichments" on the warmup mode to get a nice AFR.
Decel pops are normal with lean conditions. Im using the over-run cut off, so when cruising and I stay off the throttle more than a few seconds, it cuts fuel to save on gas and allow engine braking. Right when it cuts the AFR will go to O2/20:1 and pop.