1991 Toyota 4Runner Q&A

1991 Toyota 4Runner Question: Loses power on hills

I loses power going up hills. The bigger the hill slow it get and uses more fuel on the bigger hills. runs great other wise. -
Answer 1
possible vacuum leak, map sensor, or problem with ignition system -
Related Items:
had a tune up, flushed the fuel line, lube done, started losing power going up hill, what can it be?