[twobjshelbys]

A maf system is auto adaptable since it uses the maf to measure air pressure on startup and then adjusts fuel yo the ideal a:f ratio. As a result it is auto altitude compensation.

Tha alpha-n system is essentially using software to achieve what jetting does in a car
B. You will need a tuner based program..

I (and rousch) when they used tha accel dfi system was maf based but not auto tuned so it had an altitude compensation table that adjusted fuel based on the maf reading. Once properly set up it was quite robust.

A friend just put a holly sniper system in a mustang and drove it on the arizona cobra drive with lots of altitude changes and said it worked great.