Duration at 0.050", lift, LSA and RPM range for 7 Howards Cams camshaft grinds, with part numbers.
| Cam | Part | Platform | Dur @.050 | LSA |
|---|---|---|---|---|
| Retro-Fit HR | 110245-12 | Small Block Chevy | 225/231 | 112 |
| Retro-Fit HR | 120245-12 | Big Block Chevy | 225/231 | 112 |
| Rattler | 198035-09 | GM LS | 226/234 | 109 |
| American Muscle | 197715-10 | GM LS | 226/236 | 110 |
| Rattler | 118001-09 | Small Block Chevy | 227/235 | 109 |
| Big Daddy Rattler | 118085-09 | Small Block Chevy | 243/251 | 109 |
| Retro-Fit HR | 110355-10 | Small Block Chevy | 251/257 | 110 |