The horsepower of a 1995 350 cubic inch (ci) engine depends entirely on the
application and
manufacturer. A 350 ci engine could be found in many different vehicles (cars, trucks, boats) from various manufacturers, each with varying levels of tuning and modifications.
There's no single answer. You'll need to specify the make and model of the vehicle the engine was in to get a more accurate horsepower rating. Even then, the actual horsepower might vary due to condition and any modifications.