Did the 1994 Ford F-250 standard cab with a 7.3 have turbo?

No, the 1994 Ford F-250 standard cab with the 7.3L engine did not have a turbocharger as standard equipment. The turbocharged version of the 7.3L Power Stroke diesel engine didn't become available in the F-Series until the 1994.5 model year. Therefore, a 1994 F-250 with a 7.3L would have been the naturally aspirated version.