THE HORSEPOWER NUMBERS
RPM Shorty 1⅞ 2.00 2⅛
3,000 255.0 261.7 266.7 262.8 271.0
3,100 263.5 270.5 276.5 272.6 280.3
3,200 274.0 282.3 287.8 284.8 291.7
3,300 286.0 296.1 300.4 298.2 304.2
3,400 298.3 310.6 313.6 311.5 316.6
3,500 309.3 324.9 326.3 323.7 328.5
3,600 320.1 338.6 339.2 335.7 339.7
3,700 331.3 352.8 352.2 348.6 350.6
3,800 342.7 367.0 364.2 362.2 361.3
3,900 354.4 379.6 374.6 375.4 370.8
4,000 366.3 391.1 384.5 387.1 379.7
4,100 379.5 402.1 395.5 398.2 388.9
4,200 394.3 413.0 408.0 409.3 399.1
4,300 410.0 424.2 421.1 420.3 410.4
4,400 425.5 434.9 434.2 431.7 422.9
4,500 439.4 445.4 447.4 444.1 436.3
4,600 451.6 456.1 460.9 457.5 450.3
4,700 462.6 467.4 474.7 470.7 465.7
4,800 473.3 478.7 488.9 483.8 479.9
4,900 483.1 489.3 501.6 496.6 492.9
5,000 492.3 499.0 512.5 509.0 505.2
5,100 501.2 507.9 522.2 520.8 517.0
5,200 510.0 516.0 531.1 531.6 527.7
5,300 517.9 523.7 539.5 541.0. 537.8
5,400 524.7 530.9 547.3 549.1 547.0
5,500 530.0 536.8 554.3 556.5 554.5
5,600 534.4 541.8 560.4 562.9 561.0
5,700 537.9 546.0 565.8 568.3 566.5
5,800 540.7 550.1 570.2 572.3 571.3
5,900 543.4 553.8 574.0 576.3 576.4
6,000 546.5 556.7 577.0 581.2 580.5
6,100 549.4 559.0 579.0 585.4 584.3
6,200 551.6 560.8 581.2 588.8 587.4
6,300 554.1 561.3 582.2 591.1 589.1
6,400 554.4 560.5 582.4 592.6 589.3
6,500 552.9 558.5 581.0 592.3 589.2
6,600 549.0 554.7 577.7 590.8 587.1
6,700 540.5 550.4 573.3 586.9 583.2

AVERAGE POWER
Test RPM range Avg. HP Avg. TQ
Shorty 1⅞-inch 3,000-6,700 446.1 482.9
1¾-inch coated 3,000-6,700 456.7 495.8
1⅞-inch coated 3,000-6,700 466.6 505.0
1⅞-inch uncoated 3,000-6,700 465.8 504.4
2.00-inch coated 3,000-6,700 467.7 505.3
2⅛-inch coated 3,000-6,700 465.7 503.6
1⅞-inch no extension 2,500-5,000 340.4 469.9
1⅞ 18-inch extension 2,500-5,000 354.8 490.6

SOURCE
Holley Performance Products
1801 Russellville Rd.
Bowling Green
KY  42101
270-782-2900
http://www.holley.com