They made a few versions of it. I would have to know which motor you have.
about 165 hp
About 280 horses.
Need to know the year.
305 horsepower
170hp at 4400rpm
305
Either 145 with the base 305 4bbl or 165 with the 305 Crossfire injection option
The 1985 Buick Regal did not offer the 305 V8 as an option that year.
235 horse is stock on 98 305
190 HP. cant remember the torque.
160 hp @ 4200 rpms