Anti-lag functions and throttle position mapping

[Rodney_L_Wiggins at keybank.com]

I have two questions I'm hoping someone here can help me with. First, Does
anyone know of any of the current aftermarket EFI companies offering anti-lag
functions like on the WRC ralley cars?  I understand the computer just altered
fuel and ignition timing during shifts to fire while the exhaust valve was
opened. The result was that some of these cars could produce 15psi of boost at
idle. The amount(?) of anti-lag was cockpit adjustable.

Second, and more importantly, I'm having a bit of trouble with my Porsche 944
turbo.  I've replaced the stock, very restrictive, flapper box with a large hot
wire MAF using Split Second ARC-2 to filter the signal. The car also has a
larger turbo, headwork, nitrous etc. The problem I'm having is the large turbo
is apparently causing some sort of pulsation in the MAF. The resulting "noise"
is causing some off-idle drivability problems. Once I apply more than 1/4
throttle, the signal to noise ratio improves and the car seems to perform fine.
I was in the process of putting together a simple op-amp circuit to either limit
maximum voltage from the MAF sensor when throttle is less than 1/4 or so,  or
replace the MAF signal with an amplified throttle signal up to 1/4 throttle. I
realize the latter wouldn't compensate for load.  My question is, is there
anything on the market that I could use instead of making it myself? Prefferably
something digital. I've been told that I'd have to buy a complete EFI system.
Which might be worth it if I could also get Anti-lag and boost-control
functions.  Does my solution make sense?  Any input you could provide would be
very helpfull.  The car has any early form of Bosch Motronic. Before some recent
modifications the car was dynoed at 320 rear wheel HP without nitrous and 395HP
435TQ with nitrous.
Thanks in advance,
Rod Wiggins