Can you see if there has been any work done to my heads?

Hello! I'm home with the flue, bored to death. Can you see by these pictures if there been any porting done to my 1965, 273 heads? I myself have never been deeper into the engine then when I did this cam swap without removing the heads. Remember thinking it looked like someone took a grinder to them at some point. These are the specs of my combo:

273 Commando - 1965
Cam: Comp Cams Magnum 282S - 282/282 Lift 495/495 (solid) Beehive Springs
Edelbrock D4B intake / Holley 670 Street Avenger
Pertronix Ignitor & Flame Thrower coil
Hooker Headers
2.5" Dual Exhaust / Super 44 Flowmaster
8 3/4 - 3.55 - SureGrip
727 auto / Shift Kit
10" 3000 stall converter
B&M Quicksilver Shifter
Hoosier Quick Time Pro D.O.T 26.0 x 9.50-14