Does a 1994 Pontiac Firebird have speed regulator?

No, a 1994 Pontiac Firebird did not have a speed regulator (what is commonly referred to as cruise control). While cruise control became increasingly common in the 1990s, it wasn't a standard feature on all models, and it was often an optional extra. Therefore, a 1994 Firebird *might* have had it installed, depending on the trim level and options selected by the original buyer, but it wasn't standard equipment.