Yes, the EFI self adjusts with altitude. Living at 9000 feet and often driving mountain passes well over 10500 feet I can attest to this. I still have my adapted cold air intake system from behind the passenger wheel, as illustrated in a previous thread.
Bruce 1964 4/4 Series V Comp (Megan) 1994 +8 (Maurice) 2013 M3W (Olga)
