5,700 523 568 0.435 39.4 167 163 63.4 6.2 83
5,800 517 571 0.442 40.3 167 164 63.4 6.2 83
5,900 511 574 0.449 41.2 167 165 63.3 6.2 83
6,000 502 574 0.455 41.9 167 165 63.1 6.2 83
6,100 494.1 574 0.461 42.5 167 165 63 6.2 83
6,200 484.9 572 0.476 43.9 167 165 62.9 6.2 83
6,300 475.2 570 0.484 44.5 168 165 62.7 6.1 83
6,400 465.6 567 0.487 44.6 169 165 62.5 6.2 83
6,500 454.2 562 0.486 44.3 169 166 62.5 6.2 83
Average Data
5,250 525 522 0.429 35.7 166.5 163.2 63.2 6.18 83
Inertia Factor 1.32   Time 6.6 Secs

Not wanting to leave well enough alone, we felt our Torker intake manifold was not properly matched to the rpm range that the engine was making its power, so we decided to try a Mopar M-1 with our combination. As you can see, our engine benefited from the swap to the tune of 18 additional horsepower! Although we lost some midrange torque, look at the horsepower numbers at the higher rpm-up to 574 hp.