edelbrock heads

I have almost the same motor 394 ci , 10.9 comp.
But my cam is 255/266 @.050 ,703 lift with 1.65 T&D rockers and Indy 360-2 heads.
On 91 octane pump gas it made 662 hp, 533 tq. I have ran a best of 6.21@110 on drag radials through the mufflers at 2950lbs.
that sounds pretty tuff!,is that a roller cam?
never put mine on the dyno what hp do you think it would make