Dulcich is a master builder...there may be a secret or two in his 383.
i wonder if those "906's were massaged a little.
No he said that they are un-touched 906's, I just feel if I went out and bought the same cam, intake, carb and headers put them on a 9:5 comp 383 and ran it that it would not make near the power that one does.
I only know one guy who has built a 383 in recent years and with aluminium heads it made 425-30 hp...next time I talked to him I'm going to ask him why he tossed the stock heads, he could have made more power with them,:poke:
