Level 2 Iron Head engine dyno testing results
| RPM | Torque | HP | BSFC | Fuel lbs/hr | Air SCFM | A/F Ratio | Water Temp | Oil Pressure |
| 3500 | 487.6 | 324.9 | .481 | 145.6 | 371.6 | 11.68 | 154 | 60.1 |
| 3600 | 500.1 | 342.8 | .446 | 142.5 | 385.2 | 12.37 | 154 | 61.2 |
| 3700 | 515.3 | 363.0 | .390 | 131.9 | 407.2 | 14.13 | 155 | 63.1 |
| 3800 | 526.7 | 381.1 | .397 | 141.0 | 425.1 | 13.80 | 154 | 63.5 |
| 3900 | 541.9 | 402.4 | .403 | 151.2 | 445.5 | 13.49 | 154 | 63.8 |
| 4000 | 552.9 | 421.1 | .431 | 169.3 | 465.9 | 12.60 | 154 | 64.0 |
| 4100 | 558.7 | 436.1 | .428 | 174.0 | 479.5 | 12.62 | 154 | 64.2 |
| 4200 | 559.7 | 447.7 | .440 | 183.5 | 494.7 | 12.34 | 154 | 64.6 |
| 4300 | 561.5 | 459.8 | .432 | 185.4 | 512.6 | 12.66 | 154 | 64.9 |
| 4400 | 563.2 | 471.8 | .429 | 188.4 | 524.9 | 12.75 | 154 | 65.3 |
| 4500 | 558.1 | 478.1 | .432 | 192.7 | 533.3 | 12.64 | 154 | 65.5 |
| 4600 | 550.9 | 482.5 | .440 | 197.8 | 547.8 | 12.68 | 155 | 66.1 |
| 4700 | 552.6 | 494.6 | .411 | 189.2 | 562.4 | 13.61 | 155 | 66.9 |
| 4800 | 542.9 | 496.2 | .416 | 192.5 | 574.2 | 13.66 | 155 | 67.4 |
| 4900 | 537.8 | 501.8 | .447 | 208.7 | 581.4 | 12.75 | 156 | 68.2 |
| 5000 | 536.3 | 510.6 | .475 | 225.5 | 595.0 | 12.08 | 156 | 69.0 |
| 5100 | 532.3 | 516.9 | .463 | 222.4 | 605.7 | 12.47 | 156 | 70.1 |
| 5200 | 524.6 | 519.4 | .487 | 235.4 | 616.8 | 12.00 | 156 | 70.8 |
| 5300 | 514.3 | 519.0 | .492 | 237.8 | 625.1 | 12.03 | 156 | 71.5 |
| 5400 | 512.9 | 527.4 | .471 | 231.2 | 641 | 12.70 | 156 | 72.2 |
| 5500 | 508.2 | 532.2 | .479 | 235.2 | 641.8 | 12.49 | 157 | 73.0 |
| 5600 | 489.4 | 521.8 | .514 | 24902 | 648.0 | 11.90 | 159 | 74.1 |
| 5700 | 474.5 | 515.0 | .512 | 244.7 | 646 | 12.09 | 159 | 74.1 |
That's on Pump premium 92 Octane gas!
And that is not this motors best sheet!.. We richened the carb up (it's a bit lean here), and it picked up even more torque at the low rpm ranges of the test. And we saw a lot more 520+ Hp numbers. That sheet went to the customer, and I must have neglected to make a copy.