Here is the 505 stroker for the '72 Challenger.
750 cfm Holley
Edelbrock Torker II intake
Edelbrock RPM heads
Custom grind Comp Cams street roller
91 Octane from the Stinker Station
RPM............TQ/HP
3000........513/293
3200........534/325
3400........585/379
3600........597/409
3800........599/433
4000........609/464
4200........608/486
4400........610/511
4600........613/537
4800........619/565
4900........622/580
5000........621/591
5200........617/611
5400........613/620
5600........595/635
5800........578/638
5900........573/643
6000........572/654
6100........566/657
Before we got some problems worked and the engine was only making 590 lb-ft and 585 HP we tried a Performer RPM intake and gained 26 TQ peak and 15 HP peak with an additional 30 LB-FT of torque @ 3300 rpm. We're out of time to try the RPM intake on the engine now as we have to get the 446 and 496 on our dyno.
750 cfm Holley
Edelbrock Torker II intake
Edelbrock RPM heads
Custom grind Comp Cams street roller
91 Octane from the Stinker Station
RPM............TQ/HP
3000........513/293
3200........534/325
3400........585/379
3600........597/409
3800........599/433
4000........609/464
4200........608/486
4400........610/511
4600........613/537
4800........619/565
4900........622/580
5000........621/591
5200........617/611
5400........613/620
5600........595/635
5800........578/638
5900........573/643
6000........572/654
6100........566/657
Before we got some problems worked and the engine was only making 590 lb-ft and 585 HP we tried a Performer RPM intake and gained 26 TQ peak and 15 HP peak with an additional 30 LB-FT of torque @ 3300 rpm. We're out of time to try the RPM intake on the engine now as we have to get the 446 and 496 on our dyno.