X-Head Flow Numbers - What to do

As I mentioned the cam is an older Lunati (24 years old but in good shape), I lost the cam card so I degreed it when I installed it in the shortblock. Here's the numbers.

104 Centerline I & E
248 Duration @ .050 I & E
.507 Lift I & E
Intake
20 BTDC Open
48 ABDC Close

Exhaust
58 BBDC
11 ATDC

31 Overlap??

Running A Holley Strip Dominator
750 Carb
1 5/8 Headers
Flat Tops Poking out .012"
3:91 Gear & 4 Speed
28.5" Rear Cheater Slicks, May need 4:10 or 4:30's
Expecting power from 3000 up

Sound Right/Wrong? Open for suggestions.
Thanks all,