About 870 @ 7,400 rpm and 705 tq @ 5600 on a 438 wide bore with a race carb with a big carb you can add 10 more horse to that and that is on a new dyno
Have a nice set of 8 carrillo 6.000 2.000 (SJ) and .940 wide and .927 pin weight 601gr big end 435gr little end 166gr with 7/16 wmc rod bolts 1700 laps $ 700.00 plus shipping