Yep it mimicked a stock resto 383 I did about 20yrs ago, 325hp/380tq on a SF-901. Prior to that I worked at a shop that we did a 383 for a beautiful '67 Belvedere , we never dynod it but it was such a slug that we wound up trying a different cam with no noticeable change. Hence my disdain for a rebuilt "stock" 383, theyre so weak they arent even satisfying to cruise IME/IMO. J.Rob