Don't know if you guys have seen this but I found it while looking for cc503 specs on the net.

it's from z28.com

http://www.z28.com/forum/showthread.php?t=58050

Cam specs
Cam----INT / EXT
Stock LT1---202@ .450/ 207 @ .450 (1.5RR)--- 117 LSA
Stock LT4--- 203@ .476/ 210@ .480 (1.6RR)--- 115 LSA


GM Performance Parts
LT4 Hot Cam --- 218@ .525/ 228@ .525 (1.6RR)--- 112 LSA --- 1800-5800 RPM
GM12370847 --- 234@ .539/ 242@ .558 (1.5RR)--- 112 LSA --- 2000-6800
GM12730846 --- 220@ .509/ 230@ .528 (1.5RR)--- 112 LSA --- 1800-5800

Comp Cams
CCA-07-304 --- 210@ .500/ 220@ .510 (1.5RR)--- 114 LSA --- 1000-5000 RPM
CCA-07-305 --- 220@ .510/ 230@ .510 (1.5RR)--- 114 LSA --- 1500-5500
CCA-07-306 --- 230@ .510/ 244@ .540 (1.5RR)--- 112 LSA --- 1800-5800
CCA-07-500 --- 206@ .480/ 212@ .488 (1.5RR)--- 112 LSA --- 1000-5000
CCA-07-501 --- 212@ .488/ 218@ .495 (1.5RR)--- 112 LSA --- 1200-5200
CCA-07-502 --- 218@ .495/ 224@ .503 (1.5RR)--- 112 LSA --- 1500-5500
CCA-07-503 --- 224@ .503/ 230@ .510 (1.5RR)--- 112 LSA --- 1800-5800
CCA-07-464 --- 202@ .550/ 212@ .546 (1.5RR)--- 113 LSA --- 1000-5000
CCA-07-465 --- 210@ .560/ 218@ .550 (1.5RR)--- 113 LSA --- 1200-5200
CCA-07-466 --- 218@ .570/ 224@ .565 (1.5RR)--- 113 LSA --- 1800-5800
CCA-07-467 --- 230@ .576/ 236@ .570 (1.5RR)--- 113 LSA --- 2000-6000
CCA-07-468 --- 242@ .584/ 248@ .579 (1.5RR)--- 113 LSA --- 2200-6200


Crane Cams
CRN-104227 --- 210@ .479/ 224@ .518 (1.5RR)--- 112 LSA --- 2000-6000 RPM
CRN-104228 --- 210@ .479/ 224@ .518 (1.5RR)--- 112 LSA --- 2000-6000
CRN-104241 --- 218@ .498/ 218@ .498 (1.5RR)--- 116 LSA --- 2800-6500
CRN-1449555 --- 210@ .531/ 218@ .531 (1.5RR)--- 114 LSA --- 1900-5600
CRN-1449571 --- 210@ .531/ 218@ .531 (1.5RR)--- 112 LSA --- 1000-5800
CRN-1449561 --- 216@ .551/ 224@ .551 (1.5RR)--- 115 LSA --- 1500-6000
CRN-1449581 --- 220@ .551/ 220@ .551 (1.5RR)--- 112 LSA --- 3000-6500
CRN-1449591 --- 224@ .551/ 224@ .551 (1.5RR)--- 114 LSA --- 3000-6500
CRN-1449601 --- 228@ .600/ 232@ .600 (1.5RR)--- 112 LSA --- 3500-6500


Edelbrock
EDL-2108 --- 218@ .525/ 218@ .525 (1.5RR)--- 112 LSA --- 1500-5500 RPM


Lunati
LUN-54778LUN --- 206@ .469/ 215@ .489 (1.5RR)--- 112 LSA --- 1200-4500 RPM

Accel
ACC-74220 --- 215@ .499/ 220@ .510 (1.5RR)--- 114 LSA --- 1200-5800 RPM
ACC-74211 --- 211@ .499/ 219@ .525 (1.5RR)--- 112 LSA --- 1000-5800
ACC-74219 --- 219@ .525/ 219@ .525 (1.5RR)--- 112 LSA --- 1200-6200

just thought it might be useful