I checked the cam card from crane and they called for 200 closed, 455 open so that is what he would have used or close, this engine is not revy, HP is all done at 5774 RPM, 732 HP, torgue is 717 at 4757 rpm, has a indy single plane with 950 holly.

1967 GTX 572 HEMI 735 HP, 717 FT Lb T, , A-855 5 Speed, Dana 60 4:30 Gears, 30" Rear Tires