Power Curves
Note how all three camshafts create almost identical power curves through 5,000 rpm. By 5,200 rpm, you can see the hydraulic flat-tappet cam begin to nose over while both rollers continue to make similar power up to 6,000, where the mechanical roller takes over to make the most peak horsepower.
| PARTS LIST |
| COMPONENT | PN | SOURCE | PRICE |
| Comp XE 284 hyd. flat | 12-250-3 | Summit Racing | 115.95 |
| Comp XR 294HR hyd. roller | 12-443-8 | Summit Racing | 255.95 |
| Comp XR286R mech. roller | 12-772-8 | Summit Racing | 255.95 |
| Comp hydraulic lifters | 858-16 | Summit Racing | 92.95 |
| Comp hydraulic roller lifters | 885-16 | Summit Racing | 509.95 |
| Comp mechanical roller lifters | 888-16 | Summit Racing | 516.99 |
| Comp rocker, Pro Magnum 1.5:1 | 1104-16 | Summit Racing | 430.69 |
| Comp springs, dual for flat hyd. | 928 | Summit Racing | 139.95 |
| Comp retainer, for 928, titanium | 732-16 | Summit Racing | 299.95 |
| Comp 10-degree keepers | 611-16 | Summit Racing | 22.88 |
| Comp dual spring, mech. roller | 943-16 | Summit Racing | 299.95 |
| Comp retainer, dual spring, titan | 731-16 | Summit Racing | 299.95 |
| Comp springs, dual hyd. roller | 939-16 | Summit Racing | 137.39 |
| Comp retainer, titanium for dual | 732-16 | Summit Racing | 299.95 |
| Comp pushrods, hydraulic roller | 7949-16 | Summit Racing | 145.95 |
| Comp pushrods, std. length | 7992-16 | Summit Racing | 168.69 |
| Comp pushrods, hyd. flat, + 0.100 | 7993-16 | Summit Racing | 125.95 |
| Comp pushrods, mech. roller | 7995-16 | Summit Racing | 135.95 |
| Comp timing set | 3100KT | Summit Racing | 176.69 |
| Comp roller button | 211 | Summit Racing | 22.39 |
| Comp 3-pc. timing cover | 210 | Summit Racing | 229.95 |
| Comp shim package | 4757 | Summit Racing | 25.69 |
| Moroso stud mount spring tool | 62370 | Summit Racing | 79.95 |