You will never get rid of the bog without adding a throttle position sensor. The MAP is too slow to compensate for a sudden change throttle position. Really the MAP is more about fine tuning. Throttle position is more important than knowing air flow....Long time ago a company used to sell an EFI conversion for VWs that ran off of only rpm, temp and throttle position.
We build Freedom Of Speech Software. We champion free speech, individual liberty and the free flow of information online. All are welcome.