How many horsepower was my car born with?

PRH said
My old Chilton book still shows 230hp for a 71........ fwiw.Or....... 150-200 less than you really want:steering:

Hyup 380 is a good number, especially if the cylinder pressure is also right there with it. But not a 380/318, forget that........ unless it's supercharged, then I take it back,lol.