ALERT!! SOUND THE ALARM!!..

The “reference” point for the ootb heads(since I haven’t seen any other dyno results)......
360+.030, about 8.5cr, std performer, Ede 750 carb, xe268 cam, PRW 1.5 rockers, 1-3/4” headers.......
367tq@4600/331hp@5200.

At the two ends on the pull:
345tq@3000
318hp@5600

Certainly not representative of what the potential is...... but that’s all that particular combo of parts made.

Some compression and an intake manifold should have perked it right up.