It depends on the condition of the engine, and how well its been maintained. A stock 1991 3.1L MPFI V6 was rated at 140hp, but private dynos over the years have show numbers as high as 152hp, depending on the make/model/condition of the vehicle. Several factors are attributed to hp loss/gain.
31 hp mine is a 167 and its about 335 hp and about 600 fpt
31
The Arsenio Hall Show - 1989 1991-01-31 was released on: USA: 31 January 1991
The Arsenio Hall Show - 1989 1991-07-31 was released on: USA: 31 July 1991
The Arsenio Hall Show - 1989 1991-10-31 was released on: USA: 31 October 1991
The Arsenio Hall Show - 1989 1991-03-31 was released on: USA: 31 March 1991
Late Night with David Letterman - 1982 1991-01-31 was released on: USA: 31 January 1991
Late Night with David Letterman - 1982 1991-07-31 was released on: USA: 31 July 1991
31 gap according to my 1991 corolla manual.32 or 31
Talk Soup - 1991 2001-10-31 was released on: USA: 31 October 2001
Coming Attractions - 1991 2001-10-31 was released on: USA: 31 October 2001
The Chuck Woolery Show - 1991 1-31 was released on: USA: 28 October 1991