Douglas had told me the 250 multiport fuel injected 250s last year was 1997 in Brazil.
He showed me a picture of a stock 1997 Chevy truck w/one in it.
MBHD
The fuel injected, 12 port, Brazil Chevrolet 250 was produced from 1995 to 1998 in the Chevrolet Silverado Pickup Truck and the Opel Omega A Sedan.
Wikipedia lists a few more years, not sure of the accuracy:
1998–1999 Chevrolet Tahoe (Argentina)
1995–1998 Chevrolet Omega A (Brazil)
1998–1999 Chevrolet Silverado - (GMT400) (Brazil)